retooling

 After many thoughts in several directions, my kit is settling into place.

I had promised that if the S5 system didn't work sufficiently well enough I'd consider retooling the micro43 kit instead. Looking that over it doesn't make enough sense, as used S5 and eM1.2 or .3 is nearly a price match now - so I gave myself a week off, and considered other kit mutations.

Once I settled on the Lumix-S as my best choice, I evaluated my sorry lack of AF telephoto. It's clear that SA to L adaptation is not of value. So what about EF lenses using the Viltrox EF-L adapter? It's  cheaper than the Sigma SA-L, and much less than Sigma's EF-L option - so we're giving it a try. 

Reviews suggest that 3rd party EF is less consistent with adapters from all brands, so the reverse-zoom Canon options were explored - well those in my miniscule budget zone at least. Too bad, as the Tamron 28-300 vc would be handy and it zooms the "correct" direction!

Of course I'm also wishing to keep weight down also! The table below (almost) sorts some options by grams, with adapter included. The bulk factor eliminates a few - but many more are in play with EF. Canon actually made a 36x24 compatible 55-200mm.. bummer that it's old and reviewed rather poorly. They have a couple of 70-300 types, and an early 70-210/4 with push-pull zoom. Wow: Tamron has a modern 70-210.. but ugh 990g when adapter is added, nearly 300g heavier than the Canon.

I finally decided on a bargain 100-300 f/4.5-5.6 with USM drive but no IS. The S5 can stabilize it internally,  so hopefully that will serve. That 70-210 might catch me yet though* - it's closer to my S5 dream lens (a 50-200ish telezoom that's faster than f/5.6 at max FL). 

Also, the 100-300 leaves a sizable kit gap from 60-100mm; that isn't ideal. The vivitar 70-150/3.8 is a good manual option, and I expect a Meike 85mm or TTArt 75mm will plug the gap at some point. Or maybe that Pentax 85/2 that I own will resurface! 😃 

But another option would also serve: the EF 28-105 usm is small and light, faster than many at f/3.5-4.5, and it takes the same 58mm filters as the 100-300. And it's quite cheap! So I dumped most of the SA mount lenses and adapter to a reseller for a copy of the 28-105. 

The Lumix 20-60 will serve me well much of the time, and the two Canons can fight over the long end of my focal-length needs. For now.

I did search for the 75/85 primes online but didn't see any deals.. but of course Winter is Coming! No red wedding, but a black friday might be nice.

However..
I did stumble upon an open-box Meike 35/2 in L mount, for $50 off! The TTArtisan 40/2 was nice and tiny, but the Meike has a moisture gasket; that isn't proof of much, but feels comforting. I won't test it much in bad weather though: that's the 20-60's place to shine! For clear nights and other low light, though, a fast 35 will be great.

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

* an EF 70-210/3.5-4.5 usm has turned up: that's news to me! The f/4 push-pull model is a bit lighter but has no USM motor, so this sounds appealing. A pinch heavier than the 100-300, but a smidge more capable when lights are low. We'll consider this option once the previous announcements have arrived and given their chance to impress. It definitely gets added to the wish-list and threatens the 100-300! After all, I have a 300/5.6 mirror lens when long shots are important. And with that I get free donuts! :^)
Also, I see the TTArtisan 75/2 is $50 down for the holiday. Must hold for a bit though.. and/or offer a few swaps?