Showing posts with label PK|α. Show all posts
Showing posts with label PK|α. Show all posts

Saturday, April 26, 2025

Another lesson learned

 I've heard it so often: "make sure your proposed system has the lenses you want before you buy in! ". 

Yet somehow I didn't take it to heart when the S5 called. The L mount is still expanding, and lenses will assuredly appear as appropriate. 

Oops.

Worse yet, very few mirrorless systems carry what I seek. Seek ye an 50-200mm in any 36x24 system that weighs under 800 grams. The answer is: μ43 and nothing else. The Lumix 35-100/2.8 is amazing - but larger systems offer nothing slower than f/4. Those are less bulky than their f/2.8 siblings, but still not in my comfort zone. I'd prefer my old Minolta 70-210 /3.5-4.5 or 100-200/4.5, both under 500 grams and plenty bright enough for a 36x24 sensor. But to make them autofocus requires a bulky adapter, and poof goes the weight and size advantage.

The nearest things are from Tamron, which means Sony E or Nikon Z. Since I actually own the Minolta 100-200, Sony sadly makes more sense. Both have tilt screens instead of flipout, so that's a positive. The α7³ has a BSI-tech sensor with two ISO channels and PDAF - both make it comparable to the S5.II and a slight improvement over the S5. Neither company has the aspect ratios or touchscreen features of the Lumix types though - ah well.


I've been here already with the mk II Alphas, but the mk.III has become available at my price. And so the mutations begin again - please God, let it end here.

For now a 28-60 and another la-ea4 adapter will suffice for both Minoltas (100-200 and 50 macro); as other gear sells, I'll look more deeply into lens options.


Saturday, February 1, 2025

sure why not

I made a straight trade, essentially: eM1 and a couple of lenses for K-01 and 18-50re (both white!).

What I lose:

  • weather+chill sealed body
  • some compactness
  • a complex menu structure
  • PDAF focusing
Do I gain? I believe I did!
  • a very familiar Pentax operating system
  • a camera that can use Very small DA lenses (DA40+70 on hand) with no adapter!
  • a 'casual' body that looks silly not serious
  • flash available at a button press
And the similarities are good ones:
  • decent image stabilization inside
  • acceptable HD video with optional mic input
  • spare batteries on hand
The loss of weather protection is covered by the S5, so one camera it another can compensate. 

Once again, my keeping Pentax lenses around drags a PK body back into my kit. I looked at a K200d, but the K-01 also has happy memories, and a more up-to-date sensor means nice results and simple video. Nothing magical by modern standards, I grant you, but still respectable dXo test results - far higher than the eM1 could manage with its smaller scale.

Should be a fun team. 
And most of the Pentax lenses will serve time on the S5 in "classic" manual or A-priority modes.




Tuesday, September 3, 2024

Double victory!!

I finally sat down and performed two camera surgeries - and both turned out very well! A few hours of delicate work has paid off. 

First up was the Pentax K-s2. I bought this a few years back for a great price, only to find it had the dreaded Pentax mid-level body solenoid problem. For several years they put out great cameras that began failing after a few years, sooner if the camera went unused for a month or two. They put out a new body by then, but in a few years the same happened. It turned out their source for aperture-actuating solenoids, causing the camera to determine an exposure but then shooting with the lens fully closed, leading to extremely dark and diffraction-softened images. 

This problem damaged the reputation of every midrange body from K-30 to early K-70s, including the K-59 and two k-s2 models. The K-5/3/1 models did not have the problem. One could work around the issue with older lenses in Manual mode, but it wasn't ideal 

The answer has been to either scout for original cameras to steal the earlier sensor or now using the Kf solenoid. I bought the elder solenoid and .. dithered.  Maybe three years passed before I finally did the work today.

Two hours later, all my lenses are back in play. Hooray! 

I'm very grateful to those at Pentaxforums who went before me and documented the procedure for all the affected cameras, including the K-s2.

--------_-------_-------_------_-------_-------_------_-------_-------

After dinner I decided to fix the GX7, an old Lumix favorite with a bad rear control dial. That's also rather common, and the surgery is documented on several websites. This went a bit faster (no soldering needed) and thankfully it's problem is solved too! That rear dial serves many purposes, and now it controls exposure, clicks for exposure compensation and zooms in playback mode!

Now to decide between the GX7 and EM1, two very good old μ43 bodies that fit me well. The K-s2 probably won't dethrone either of them or the Sony a7r² ..but I'll keep using it a while to ensure its full recovery before deciding its fate.




Tuesday, April 23, 2024

this just might work!

The a99 has arrived, and first tests are promising. While the size will take getting used to again, the interface fits me pretty well and the screen is plenty good enough. The multi-tip-flip screen can do much more than I'm used to as well.


The kit as it stands now is pretty convenient too! 

  1. When bulk isn't called for and wide-normal shooting is all I expect to do, the 24-105 and DT 55-200 (in crop mode, 80-300 but ~10Mpix) covers the ground nicely. 
  2. When 24Mpix is valuable for all shots, I can carry the 100-300Apo for telephoto imaging and pay the 250g penalty (or take the slightly lighter 70-210/3.5-4.5). 
  3. And when close is best the 50/2.8 macro can do 1:1 just fine and capture more light than the zooms. At some point I'll pick up a 20/2.8 for seriously wide sky or mountain vistas (4-26: done! A 20/2.8rs is on its way). Possibly I'll spring for an 85/2.8 at some point.. 

Most of the a99 reviews tout its impressive HD video abilities; at some point I will explore that and do some comparative shots with the eM1. I sure wish I wasn't constrained to 16x9 video with my 3:2 and 4:3 sensors, but at my price point I take what's available!


Wednesday, November 29, 2023

Tele conundrum

So my α7r now has its 28-70mm native lens with oss and some degree of weather protection. How nice, given its 1st-generation body has no stabilization within. 

Now I'm covered to 70mm with AF and x.shake..
and then?

A telephoto lens with autofocus, wx seals, and oss by any acronym would be ideal. But where are they? Oh they are out there, but not in my price range..

  • The A-mount bodies had IS Inside so didn't need stabilized lenses (in fact Sigma and Tamron removed IS from their lenses in A and PK mounts!), and nearly all were screw-drive AF that would require an ea4 adapter ($200+).
  • Sony E-mount native options are few. And recent, so still expensive! The bargains are in the aps-c format (same mount for different sensor size) which isn't quite what I seek.
  • Tamron and Sigma have added to the E system.. but w/o stabilization below 400mm. Not ideal, as I'd be happy at 200-250mm but few players sell in that range. Other third-party companies have brought AF primes and a couple of zooms, but no wx or OIS capabilities.
  • Oddly enough, the canon EF mount has better and thrifty options for me. $100 adapters are available, and some earlier Tamrons like the SP 70-300 (with oss not vxd) have VC in canon mount. Canon's own 70-300 comes with IS and AF for less, though it zooms in the opposite direction to almost everything else I own. Actually everything I own goes the other direction.. except the Olympus 70-300 monster tele with 43-micro adapter! Coincidence?

First attempts with adapted lenses have been ..instructive. On a 36Mpx sensor, focus is really critical. Images that look all right on a tiny screen look blurry above 1:2 magnification - so AF is more important than IS and wx seals on the α7R mk.1 body. I can manage with the fast Pentax 85/2 and 135/3.5 if I'm careful, but with slower m-focus zooms I revert to focus guessing even when peaking +zoom is enabled.

I test-drove a Metabones EF adapter with the 70-300 Canon IS USD. Many rave about the EF lenses, but apparently this particular lens is older than most and is quite leisurely to AF. And after updating firmwares all over the place it generally misses focus on my test shots. It nearly locks, then shifts one last time toward infinity. Multiple AF presses do not help. That pair is going back.

70-210rs with dumb adapter, 100-300D Apo, 24-105D

So on to plan B: the EA4 adapter for A-mount. That will give me pdAF in the adapter and true aperture control in the body, but better technique will have to sub for the lack of stabilization. The best thing about this option is that I already have the Maxxum trio (photo) so plenty of range is already on hand - plus a Tokina 20-35af. I found an EA4 for less than the usual used price, so that's another plus. And it brings PDaf to the α7R, though at the price of a whiny AF motor drive. Presumably the gains will outpoint the losses on this!


Fingers crossed that this will do the job well enough. 
I'm tired of looking at reviews and specs - especially since I generally miss the one site that says "don't expect this lens and that adapter work right with your current camera body". I've learned that particular lesson more than most.



Sunday, November 5, 2023

α7R- refinements


The α7R is getting some spare bits: flash-shoe covers, a tripod plate, an extra battery. I also found it an Ugly 28-70mm oss for poor weather and lens stabilization, at a non-Ugly price.* In good weather, it can fight with the Minolta 24-105 for sensor time.

I also loaded it up with Apps that I bought almost a year ago for the α7ii, and since I paid for them they are still available. Such things as time-lapse video, action and composite shots, a wave-your-hand shutter release (not to be confused with the big-smile shutter release!) and a couple of other 'features' that most cameras tend to have in place without extra effort/expense. But it works fine and didn't cost much the first time - so I've been treated far worse than this. But what can I do with that extra 43MB of memory? I expect the answer is: lumpit.

So this camera weighs less than the eM1, and its 50/2 is smaller than the equivalent 23/1.4 on my µ43 mainstay camera. The eM1 is replete with amazing features, so the question becomes how much I would miss those in exchange for the larger sensor, higher resolution and a bit less bulk in a few circumstances.

First off, I'll look into the shutter-shock issue that ruined nearly every review for the α7R; some users laugh about its overblown presence, while others cry and point to evidence. My turn to evaluate!


*Update - as I've seen more than once, KEH Ugly label brings me a great lens, but with no caps or hood. The sucker looks new to me.



Sunday, April 30, 2023

decision time for the E mount

Having given up on the generational α issue (Minolta A vs. rebadged SonyAlpha bodies with E-mount), I kept watch on e-mount zoom deals. High on my list was compact and wx-resistant types, things which Sony has some but not many in my price range. My TTArtisan 21mm fails both marks but their 50mm f/2 is very compact but without seals. I'd been contemplating a 35mm but the Pentax DA35 Limited is both talented as a 35mm and a 1:1 macro lens, but it too lacks seals. 

For zooms, the internal IS system demands a focal length to optimize the stabilization per unit of twitch; that means E mount, and fully adapted A mount and Canon EF zooms* are preferred over Pentax and Nikon F. One can input an intermediate focal length or change it with each zoom action.. clearly not practical or ideal. After watching for a while I found a Sony 28-60mm retractable for decently for around $200, which is the common break line below which they are seldom seen. It is no speedy item but that's how it stays small - and users have been pretty happy with theirs.

My longer-tele dream was pretty much down to two Tamrons. Either the 28-200mm or 70-300mm would be quite portable for their range, with weather seals and quiet motors to go with good reviews.  (I had hoped the 24-105 +100-300apo Minolta team would cover this zone but adapting them to the α7ii was frustrating me no end.) First one below $400, though it could cost me other gear in exchange? 

In the end the 70-300 won out.

Finally I still had the 35mm prime slot to fill. Tiny Samyang, or wx-sealed Tamron with 1:2 closeups? Or Sony ZA, or something else? Tiny is good but seals are too.. and most of my close-up shooting is between 1:2 and 1:4. Still dithering, but leaning toward Tamron. I've added it to my kit spreadsheet to see how it looks.

* It should be noted that adapted primes are quite painless on the α bodies: just enter the focal length and have fun. That means many Pentax primes can disrupt the kit in nice ways (e.g. 28-60 + adapted PK 70+85+135).


Tuesday, February 28, 2023

enough already.

I've been through the wringer with the prospective α7 kit. I ordered an α7ii and Minolta lenses, and then picked up an ea3 and ea4 adapter to find what works best for me. 

The answer, sadly, is now None of the Above

My brief dabble with an α7Rii seemed to focus with the ea4.. but it had to go to pay medical bills. Now I find the α7ii +ea4 won't focus the Minolta lenses; it just racks from end to end and randomly allows me to take an image, but only one focused to infinity. So whether it's a bad setting on the 7ii or a malfunction in the ea4 adapter, I now have no autofocus capabilities. Yes it's a fun camera with the Pentax primes, but the eM1 now has two excellent AF zooms (Lumices 12-60 +100-300) and a dual PD+CD focus system as good as the 7ii can match.

As to those Pentax lenses.. well I still have the K-s2 body with its unhappy solenoid. While no match for the Sony 36x24 image possibilities, it's a fine little camera - and will be more so once the solenoid is replaced. It can autofocus the 17-28 fisheye and Σs 28-105 +70-300, even when exposure is in M mode with the solenoid issue. And once that foul part is swapped out, the tiny 18-50 and 70 Limited will be play with full automation!

And then we have the happy µ43 kit: the eM1 and two zooms do everything quite well and play cheerfully with the Pentax primes. I even have the .71x PK speed-booster to create more lens options!* 

I believe it's time to cut the energy I'm wasting on Sony and A-mount.







*e.g. the DA70 f/2.4 Ltd is also a 50mm f/1.6

Thursday, December 8, 2022

decisions

Sony's system has several choices for adapting A-mount (Minolta, Sony phase 1) lenses. Each does well when matched up with the 'right' camera and the 'right' lens. Does your lens have a motor? Is your camera body a 4th generation or 3rd, or 2nd? 

If some of your lenses have motors and some don't .. well, you need to sort out your priorities!

So here's my main two options:

  • Current: LA-EA3 + a fully functional Tamron SP 70-300. I also have the native Sony 28-70oss, and Minolta zooms that work but without AF.
  • Plan B: LA-EA4 would provide AF for the Minoltas 24-105, 70-210ii and 100-300 .. which means louder AF and a mere 4mm extra AF coverage (24-28mm). The Tamron would work fine with the ea4 - but only by using the more limited AF points of the ea4.

Most of my long shots are not AF dependent (e.g. Birds on Branches), and I'm old enough to remember how to pre-focus for the occasional BiF shot. 

I've heard the Tamron+ea3 has excellent image quality, for many users as good or better compared to their 100-300 Apo, but adapted lenses' performance is still short of native E-mount lenses.

The ea4 uses SLT tech and an infamous screw drive. How loud is it, and how versatile for manual focus? Some owners have reported that occasionally their AF pin stays in the lens, which limits MF; it seems to have a DMF setting which would retract the AF pin though. A dyxum post suggests that their ea4+ssm pairing is more accurate at long focal lengths than ea3+ssm. 

The Tamron is over 220g heavier than the 100-300, including the ~50g adapter difference - and the 70-210ii would be a bit lighter (and brighter)! I must say: that savings is worth something. There's also the autocorrection of native E-mount images to consider; the 28-70oss definitely gets treated, but who can say about the 24-105?

A-mount lenses transmit aperture and focal length to the camera for stabilization and exposure, which is nice. That's a bonus over my third option (an adapted Pentax 70-300apo from Sigma) without a $350 adapter. For that amount I could put both ea3 and ea4 in my bag!


12/16 Update - I picked up an EA4 adapter and it's on the way. Guess the Tamron can depart..


Monday, October 17, 2022

the 'new' thing

The gx85 triggered a kit avalanche: a small-lens μ43 kit has revealed itself, and the E-M1 and its super kit lens became less valuable relative to other possibilities. After some browsing (an ever-present danger for me), the eM1, 14-150, 30mm macro and a fine 55-300 Pentax left the building. 

In exchange, a Sony 'alpha' A7 mk.ii and 28-75mm OSS lens have  arrived! The pair has settled into a case and been fitted for a shoulder strap. The A7's relatively low grade brought the price within trading distance, and its features are winners for what I do: in-body IS, tilt screen (not touch enabled), a large sensor without massive pixel count, HD video without cropping from sensor field of view, many customizing options and USB charging. I didn't know how many clicks had been put on the shutter, but sub-28k is a nice low number. It also means that companies like TTArtisan, Sigma and Tamron make lenses for the system - unlike Pentax K, sadly. My K-s2 days might be numbered.. but my K-mount lenses definitely remain in play!

This gives me two µ-USB-chargeable cameras (yay for power banks!), and three distinctly different feature sets and sensor sizes! 

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

A few optical dominoes fell rather swiftly, once I found an la-EA3 Sony/E to Minolta/A adapter. 

For compactness I went with the bargain from my new friends, a TTArtisan 50mm f/2, which will arrive by slow boat across the wide Pacific. Hopefully TTA will offer a few more f/2 bargains soon!*

Another boat will carry an A-mount copy of the Tamron SP A005 70-300mm with its EA3 compatible USD focus motor. I'd already ordered a Maxxum 100-300 Apo + Maxxum 70-210/3.5-4.5 (2nd-gen 'lite beercan'), but the EA3 can't autofocus with them. We'll pick at least one winner from my three fine choices.

And for close shots, 10+16mm extension tubes (bright blue ones!) are on the way.

My plan for now is to get 20 and 35mm Tamrons at some point*, and have a kit of 20-35-50 primes (plus 85-135 Pentax), and the two zooms.  

I have no proof of more need than these: not now, at least.


* if the TTArtisan 21mm doesn't persuade me!



Tuesday, November 30, 2021

a setback

 Well, it's clear now why the K|s2 body was such a bargain. It is already possessed by the defective-solenoid issue that is Aperture Block Failure.

definite underexposure..
It's the demon of the Pentax world, and has wrecked the reputation of the Pentax midrange line since the K30 and has mostly been addressed by the K70. Worse than this - it forces users to buy earlier models to steal the Japan-made solenoid which hastens the early models' demise as well. Hence the high number of 'for parts only' bodies for sale on eBay. 

The single-digit bodies starting with K-7 use a different method to push the aperture lever for proper exposures. For other models including the K|s2, a solenoid fails far too early in the camera's expected life - and the result is all shots are taken with the aperture fully closed. 

Sample: metering at f/4 is done correctly but shot is taken at f/32 = resulting image is both six stops too dark and subjected to diffraction effects at the lens' minimum aperture. If all your metering is done at f/16 you're only two stops underexposed, but diffraction still yields an image with limited resolution. 

Yuk! 😱

Here are consecutive shots, one in normal shooting and one in live view. These are at f/9 with auto ISO - note the underexposed is iso5000, the live-view is 51200. I'm not sure how I got to that number as I thought autoISO was set to top at 8000. Clearly I need to lock down a few other parameters and try again. Not also this is with firmware 1.0; perhaps changing that will yield different results, but perhaps not.

Here's another shot that is overexposed and ISO is pinned at 8000 - so perhaps between these shots is when I adjusted ISOmax. Still not helpful since I have no similar shot in normal mode.


I fully intended to return the camera - but life has intervened and I won't be able to do that in time to meet the seller's deadline. I therefore have two options: 

  • send in for repair (doubling the camera's price, and likely getting an improved but still inferior K70-era solenoid) or 
  • find a donor body and do the work myself. With no spare time right now that could take a while - but I have a K7 in hand so am not desperate for a perfect K|s2 in a hurry.

I've gone with option two, and have picked up a functioning K100d body +18-55mm lens for under $100. Most K100d bodies have two fully-useable solenoids, one on the flash circuit and one for the aperture. In that case I can steal from the flash and still have a working K100d to keep or pass along w/an external flash! Many Pentaxians have done this surgery and posted all the instructions, so if I take my time it should be fairly straightforward.

This brings the K|s2 price to about $360 plus labor, which is a decent price for the feature-set. A 20Mpix stabilized sensor, weather-sealed body with bonus features (pentaprism, flip screen, many famous Pentax features) and one that uses my current set of lenses as they were intended. 

I looked at other options, but this seems the best solution right now. Jumping to other brands could bring me most of these features other than autofocus, but under the budget and circumstances I'm happy with this decision.



Sunday, November 14, 2021

ooooooops.

 I won a K-7 auction. Gently used, less than 7500 clicks. And a Sigma 18-50/2.8 from the same seller.

That changes a few things!

The K-7 brings me a tougher body design than the K-s2, a less versatile sensor but controls I know well. It's definitely not a K-5ii-level system - but it came to me at a surprisingly low price. Since I also have a spare Li90 battery sitting around, it immediately has a spare battery (total of three). It also has the curious 3:2 video mode that I envy compared to every modern camera's 16:9 ratio (I hear instagram has made 1:1 a popular video format; I wouldn't know).

The 18-50 definitely changes my need for f/2.8 primes; even the 50/2 has less interest! It won't be quite as sharp as a prime with so much glass in play, but it does do 1:3 closeups - that's nice! Since the longer lens can do the WR times, the 18-50 has a nice speed advantage over the 20-40 Ltd and the 18-50wr. 

It looks like the basic system is here for now:

  • K-7 or K|s2
  • Σ18-50 + 50-200wr DA|L
  • DA21 Ltd
  • 85 and 135 smc-M
  • bonus items: Σ100-300 slowpoke AF, Rikenon 70-150/4 MF
No doubt more will accrue at some point. For now this is it.

After some contemplation, I expect that I'll allow the K|s2 to arrive and give it a shot to win me over. I still really like what it offers, and if I sell the K-7 and smc-A 28+50 it's nearly a draw.


Sunday, October 31, 2021

Why a ks|2? What changed?

 The K-5.ii series was my ideal camera at the time. At that time dSLRs ruled, it was the adolescent years for µ43, Sony renamed the NEX system as αlphα thereby abusing its own A-mount users, and Fujifilm was introducing the X system. Not to mention. . . . -Oops: start again-

The K-5.ii /.iiS was my ideal camera at the time. The K-5 was quite amazing, but the II series added an AF system with accuracy to EV-3 and 'stickiness' to AF point selection in continuous AF. The gapless screen on the back really improved the view. The AstroTracer on the K-5 bodies was also quite cool! And for what it's worth, the dXo score of 82 is the highest Pentax aps/c mark yet (though the K3/3 will probably claim that crown soon).

Future developments brought the K-3: it was a bit larger, annoyed purists with the "RICOH" logo on the back, and bumped up resolution.  A few cool features dropped in like composite modes (and later PixelShift in the 3.ii model). The AF switch became a switch and button, but no massive changes to its workings.

Developments also brought the K-S1: it was tiny, with a 'tweener 20Mpx chip - and dropped most everything Pentax dSLRs were known for (weather seals, two control dials.. even auto image rotation!). I bought one (OK maybe two) but could not manage the differences. I sure wanted to like it though, as the 20Mpx sensor impressed me and the new multi-WB feature sounded intriguing.

The K-3 series continues to this day, but the KS series made one more move (the KS|2) before restoring Pentax numerical tradition with the K70 (rendering the KS bodies as K∙60 stand-ins). Pentax referred to the S series as special/experimental/tech demo - so consider the K70 as the fruit of the KS labors.

Now - what makes the K70 a bump from the K62 -er KS|2? It got the 24Mpx sensor, more memory for image buffer and fps boost, and added a couple of features like the red night-view screen & an extra (unuseable but available) stop to iso 102400. Ah, it has 14-bit raw* instead of mere 12-bit depth on the K62.. important but not a deal-break for such as me. AF, VF, battery and battery life - all the same.

So is the K62 a loser? 

Not at all - it's the only NFC-enabled Pentax, for one. And the only 20Mpx with wx seals - claimed as the smallest and lightest sealed dSLR, though the K70 isn't behind by much there. And the earliest K-body with clarity adjustment in-camera!

In other words: it's the full* K-5iis imaging feature-set plus newer-tech composites and components. and a flip screen. It uses the smaller Li-109 battery not the Li90 so a second battery will be needed. Sounds good enough for me.


If it can be tarred with any brush, that would be for the cheap capacitor used for aperture actuation. Since failure of that part has been an issue with every K# body from 30 to 70 it's the biggest stain in Pentax' collection and shared by many. When the time comes, my soldering iron will be ready.

Thursday, October 28, 2021

take a deep breath..

 now let it out.. slowly..

OK all better. Let's review!

Fuji has great possibilities, all of which can come once the budget is not what it is now. While I love the 15-45mm lens in theory, I am not convinced in practice except at 15mm. That's too bad, as it leaves too much space before the 35mm TTArtisan and then the Pentax trio of 50/85/135 come into play. Looking at optical benchmark sites I see a serious trend in the mirrorless game: a whole bunch of uncorrected lenses are achieving greatness through in-camera reprocessing for distortion. All of the Fuji mid-wide to mid-tele 'kit' lenses have 5% distortion at the wide end, often more. Processing for that much leaves marks, and opticallimits calls them out. Vignetting also, and occasionally chromatism. Really primes are the way to go - and while Fuji handles that space very well, it comes at a massive and currently unobtainable cost.

So for now Fuji is out, but on the futures watchlist.

I have the excellent eM1 and a couple of very nice lenses, so I'm OK with it.

But I'm left with a taste of APS-c goodness, and a sour taste for mirrorless. After all many of the µ43 'kit' lenses are massively corrected in-camera as well. I've always disliked that about the mirrorless game, but other cool features have kept me in place.

Really, where else could I go? Two answers: Nikon or ..Pentax. Again! 

  • F mount: 17/50/85/90mm primes and 55-200 +100-300
  • K mount: 50/85/135 trio plus a couple of zooms
Both of those have gaps galore, but Pentax can be filled with 16-45 or a WR 18-50 (among others). A futures option would be the 20-40 Limited zoom, or the 16-85 or ..who knows.

After a couple of years away, it seems the Pentax leftover lenses kept a grip on me after all!

So today I swung a deal (with a dealer, of all people): xT100 and 15-45 for a K-S2 body plus cash back. That cash can buy me an 18-50 if I choose that route.  Or maybe I'll go with a couple more primes and that's what the Pentax kit will be?