p.1 #1 · Stabilization jitter while using a Sigma 500mm 5.6 on an A7R6 and 5?
I recently rented a A7R6 and a sigma 500mm 5.6 to see how it would perform for my birding use. I currently use an A7R5 and a 200-600mm but was curious what going faster and lighter would get me.
Optically the new combination was terrific, very impressed by the performance of the lens in terms of resolution and rendering. However, there was one odd issue - in both of the stabilization modes (that you can choose on the lens via switches) there was a two or three Hz jitter when looking through the lens when hand held. This behavior also occurred when using it with my A7R5. I didn't have time to try the lens on a tripod, unfortunately. The jitter also manifested when I braced my arms on a railing, though. I'm guessing there was something wrong with this copy of the lens.
What sort of stabilization performance would people who have used this lens expect on either of these combinations (R5 or R6?
p.1 #2 · Stabilization jitter while using a Sigma 500mm 5.6 on an A7R6 and 5?
There are actually 6 OS modes. The OS switch is for direction 1 (both axes) or 2 (panning). The lens custom switch on Sony changes the live view stabilization. OFF = "standard", C1 = "dynamic", C2 = "moderate". 2 x 3 = 6 combinations. I prefer OS ON + C1 which is "dynamic".
p.1 #3 · Stabilization jitter while using a Sigma 500mm 5.6 on an A7R6 and 5?
jeffbuzz wrote:
There are actually 6 OS modes. The OS switch is for direction 1 (both axes) or 2 (panning). The lens custom switch on Sony changes the live view stabilization. OFF = "standard", C1 = "dynamic", C2 = "moderate". 2 x 3 = 6 combinations. I prefer OS ON + C1 which is "dynamic".
Good to know, thanks. Would you expect to see this kind of jitter in any of these modes?
p.1 #4 · Stabilization jitter while using a Sigma 500mm 5.6 on an A7R6 and 5?
"is it on the latest firmware" responses often annoy me, but in this case, maybe appropriate. I had the Sigma 500 f4 and there were at least 2 updates in the time I had it.
I assume you don't have the lens anymore so don't have the option for firmware update or trying the different OS modes. I'd be doing both.
p.1 #5 · Stabilization jitter while using a Sigma 500mm 5.6 on an A7R6 and 5?
Choderboy wrote:
"is it on the latest firmware" responses often annoy me, but in this case, maybe appropriate. I had the Sigma 500 f4 and there were at least 2 updates in the time I had it.
I assume you don't have the lens anymore so don't have the option for firmware update or trying the different OS modes. I'd be doing both.
Definitely good to check firmware. There's only been one update to Ver.02 2024.06.20. It was purportedly specific to a9 III 120fps support. But you never know what other "fixes" may be included. I used my lens on both version 1 and 2 and didn't notice any difference in OS performance.
