Sony A7s vs Sony A7II

I find the low light capabilities of the 7S to be enough that it will be my street camera, especially in the evening or inside with any of the CV Nokton lenses. At this point, my Canon cameras will most likely stay home when I travel--this will be a first for me.
Next up is a regimental reunion in D.C. and I will test the difference between the Zeiss 21mm f2.8 ZE and the CV 21mm f1.8 with the RII for group photos. My fastest SWA zoom with AF is the Canon 16-35mm f2.8, so it will get a test on the RII as well.
Then Paris in the fall and possibly some other travel in Europe--I plan to bring the 7S, 7II and 7RII with just three lenses: Sigma 12-24mm DG II, CV 40mm Nokton S.C. and Sony 24-240mm FE OSS. As an old news shooter I have no problem hanging one from each shoulder and one around the neck. I had hoped that I wouldn't need a battery grip, but the R2 is so hungry for juice that it will be necessary to mount the grip.

I meant tracking as in sports/motocross etc.. sports tracking, not gps

Sounds like the A7s - with the caveat that you get your 55mm f 1.8 soon (sweet lens, btw) Or a megabones and 50mm of your choice (50mm stm is a great lens with low copy variation)

You will need to be mindful of technique and shutter speed to compensate for no image stabilization, but heck I do that all the time with my 70-200 non is - so it is something you adjust and go with.

ksbal wrote in post #17663341
You will need to be mindful of technique and shutter speed to compensate for no image stabilization

How does it work for a camera like A7ii that comes with IBIS and paired up with a lens (with IS)?

Will they work hand-in-hand, which means more stabilization?

or will one disable the other? If the IBIS is disabling the lens IS, this would mean that A7ii has the advantage on the stabilization for lens without IS.

EverydayGetaway wrote in post #17663275
That's not really true... it was designed for both, but the video guys fell in love with it and most of the photo guys scoffed at the 12mp sensor so people started claiming it was video centric... it isn't, it is very much a stills camera with a very good set of video options.

Very informative, thank you!

IBIS seems to work well. I never experience it but I'm hearing and seeing that its good. but.. IBIS means nothing for moving objects. So for wedding your shaky hands can be forgiven but you cant really expect IBIS to work for people hehe.

native Lens with IS or OSS will not give you more stabilizer. From videos on youtube that I see, they mentioned that part of the IBIS will work and the lens IS will kick in to cover the remaining needs. IBIS is good for those lens with out image stabilizer, like the prime lens.

I just need to convince myself once again that A7s is the camera I would like to go with.

Another question for you guys; have you ever shoot night photography or wedding reception with minimal light, handheld and bigger aperture (>4) with A7s ?

This where you maybe using high ISO scenario (say > 6400). Do you have issue with A7s handling such scenario?

If you have sample picture of similar scenario, can you share your picture with me? Thanks!

kakegawa wrote in post #17663832
I just need to convince myself once again that A7s is the camera I would like to go with.

Another question for you guys; have you ever shoot night photography or wedding reception with minimal light, handheld and bigger aperture (>4) with A7s ?

This where you maybe using high ISO scenario (say > 6400). Do you have issue with A7s handling such scenario?

If you have sample picture of similar scenario, can you share your picture with me? Thanks!

For that type of photography (assuming you're a paid wedding photographer) the bigger concern isn't the noise, but the ability to quickly focus and capture the event, without missing anything. In that regard, the hybrid AF in the a7II is a significant upgrade over the pure phase detect in the a7s. It doesn't matter how clean the image can potentially be if you can't focus to get the shot in the first place. In that regard, A7II over A7s any day of the week.

mystik610 wrote in post #17663835
For that type of photography (assuming you're a paid wedding photographer) the bigger concern isn't the noise, but the ability to quickly focus and capture the event, without missing anything. In that regard, the hybrid AF in the a7II is a significant upgrade over the pure phase detect in the a7s. It doesn't matter how clean the image can potentially be if you can't focus to get the shot in the first place. In that regard, A7II over A7s any day of the week.

My impression of what I read so far, i was under the understanding regardless PDAF in A7ii, low light focus is still better in A7s with its CDAF ?

Is this not true in practice?

kakegawa wrote in post #17663912
My impression of what I read so far, i was under the understanding regardless PDAF in A7ii, low light focus is still better in A7s with its CDAF ?

Is this not true in practice?

That's true, but neither are going to be fast enough or reliable enough to shoot a wedding with. The only a7 that might be up to that task is the new a7Rii from everything I've read. I definitely wouldn't rely on my a7S to shoot a wedding with AF lenses.

I also think you're underestimating how dark a reception hall can be. The wedding I shot (I've only done one) I used f2.8 or faster lenses and still had to push ISO past 6400 for a number of shots when I couldn't use flash.