phinix wrote:
Would lack of 1/8000s on Sony A7c be a problem with our 40mm 1.2?
Like in sunny days? Or even bright ones?
Yes possibly, but if you take a polarizer, which I use on my CV40 most of the time, 1/4000 should be OK. I looked back on my Europe trip pictures that I'm posting here, and out of 350 or so with the CV40 I only had 10 that were above 1/4000.
There is another potential issue with using the CV40 on the A7c though. The A7c lacks a full mechanical shutter. Using EFCS at 1/1000 and above, you will get busier bokeh with half-circle bokeh balls and potentially uneven exposure. The only other option is to use silent shutter, which will suffer from rolling shutter on moving subjects (electronic readout is 1/15 if I recall).
So while most of the time this lens would be fine on the A7c, there will be times when you'll run into issues. Also, I'm not sure how well the small EVF on the A7c would work for manually focusing this lens, but that's another concern I had.
I really like the character of this lens. I have a couple questions for those who have the m-mount:
1. I want to use the M-mount lens on my m2 as well as my sony a7r2. Will it be just like using the E mount version or will there be some weird characteristics after adapting it?
2. How is focus shift on film m bodies?
summmers wrote:
I really like the character of this lens. I have a couple questions for those who have the m-mount:
1. I want to use the M-mount lens on my m2 as well as my sony a7r2. Will it be just like using the E mount version or will there be some weird characteristics after adapting it?
2. How is focus shift on film m bodies?
If I recall, there are slight differences between the two optics to account for the different sensor stacks on the two systems, but any difference is mostly only noticed in the extreme corners. Not sure about focus shift.
grahamgibson wrote:
Yes possibly, but if you take a polarizer, which I use on my CV40 most of the time, 1/4000 should be OK. I looked back on my Europe trip pictures that I'm posting here, and out of 350 or so with the CV40 I only had 10 that were above 1/4000.
There is another potential issue with using the CV40 on the A7c though. The A7c lacks a full mechanical shutter. Using EFCS at 1/1000 and above, you will get busier bokeh with half-circle bokeh balls and potentially uneven exposure. The only other option is to use silent shutter, which will suffer from rolling shutter on moving subjects (electronic readout is 1/15 if I recall).
So while most of the time this lens would be fine on the A7c, there will be times when you'll run into issues. Also, I'm not sure how well the small EVF on the A7c would work for manually focusing this lens, but that's another concern I had....Show more →
Thanks for reply. Yes, I looked into this and its worrying me a bit.
Viewfinder also - I always use viewfinder, especially in bright days and I often have problems seeing anything in it, even on my A7II, so 7c could be even worse.
Maybe A7III would be better option, being just an amateur on budget
phinix wrote:
I often have problems seeing anything in it, even on my A7II, so 7c could be even worse. Maybe A7III would be better option, being just an amateur on budget
I will say that using the CV40 has become a lot easier for me on the A7R4. On the A7II I often really struggled, which made using the lens less fun than it should have been. I'm not sure how the A7C compares in that area.
Alan Parker wrote:
I will say that using the CV40 has become a lot easier for me on the A7R4. On the A7II I often really struggled, which made using the lens less fun than it should have been. I'm not sure how the A7C compares in that area.
Was it because of higher res or better viewfinder?
