[News} Sonys a7S Full-Frame Camera Realises a New World of Imaging Expression
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Love the grains on the B&W shot of the cat
Kisuke
Member
You can try the A7s at 313 Sony . They've displays which allows u to test very low light shooting. It does hunt a bit.
A key question u gotta ask yourself is: yes, advertised 4xxxxx ISO values , but what are the ISO values that still give u usable results ?
Definitely better than A7 or A7R. Most importantly, it locks in focus accurately. Still not for sports.
Gonna try it out at 313
not interested in the high ISO values
just wanna know the AF as compared to A7R
vengels
Senior Member
[video=youtube;GbTqPQrXJt0]http://www.youtube.com/watch?v=GbTqPQrXJt0&list=UUDSGlK7zwxtpWXPQEgcD0Qg[/video]
this video shows the AF of the A7S in a well lit environment..
but from the 1:10 mark.. the author turned off the lights and shot with the A7S.. it is amazing how the A7S can "see" in the dark.. the AF slowed down quite a bit when it is dark even with the AF illuminator.. it's a pity he did not turn off the AF illuminator and shot again in the dark..
this video shows the AF of the A7S in a well lit environment..
but from the 1:10 mark.. the author turned off the lights and shot with the A7S.. it is amazing how the A7S can "see" in the dark.. the AF slowed down quite a bit when it is dark even with the AF illuminator.. it's a pity he did not turn off the AF illuminator and shot again in the dark..
ricleo
Senior Member
I've had both the A7R and A7S, and also the A7. didn't have the chance to test both A7R and A7S side by side, but the reliability of the AF for A7S in low light is definitely better than the A7R. A7S will attempt to AF and get the AF in much darker conditions compared to the A7R.
in those kinds of conditions A7S can AF, the A7R/A7 can't even get close to trying to get focus.
I disable and switch off the AF illumination assist lamp all the time.
actually AF is the most important thing to me. Does the A7S focus fast enough for a walking subject using the 55m @ f1.8?
Amazing Series!!
Got my a7s for $2565 and 55mm for $956 today.
is there no minimum shutter speed with auto ISO setting??
I thought sony did this for one of the NEX camera??
First impressions.... CAF still cannot make it but the dim light focusing is very good. The camera actually gathers more light than I can see allowing to frame in very dark conditions...
Only use I can ever think of is photographing northern light handheld
is there no minimum shutter speed with auto ISO setting??
I thought sony did this for one of the NEX camera??
First impressions.... CAF still cannot make it but the dim light focusing is very good. The camera actually gathers more light than I can see allowing to frame in very dark conditions...
Only use I can ever think of is photographing northern light handheld
No, only sdxc
coolhirako
Senior Member
55mm so cheap now ?
I got mine at click. But I think the regular shops like SLRR, mscolor etc is around that price as Sony is having a cashback rebate promotion.
After playing with the a7s and 55mm for one more day, although the AFC is not very good, AFS speed is very fast in good light. And the hit rate is very high. The eye AF is REALLY good and super accurate. Nails the focus on the eyes easily even with a very thin DOF of 55mm f1.8. I can accept a lousy AFC tradeoff in return for a super accurate AFS which is better than my D800 phase detect AF.
Also the 55mm lens is really good. Sharp at f1.8 (my sensor is 12meg so it must be sharp ) and the loCA is very minimal even at f1.8.
After playing with the a7s and 55mm for one more day, although the AFC is not very good, AFS speed is very fast in good light. And the hit rate is very high. The eye AF is REALLY good and super accurate. Nails the focus on the eyes easily even with a very thin DOF of 55mm f1.8. I can accept a lousy AFC tradeoff in return for a super accurate AFS which is better than my D800 phase detect AF.
Also the 55mm lens is really good. Sharp at f1.8 (my sensor is 12meg so it must be sharp
) and the loCA is very minimal even at f1.8.Similar threads
