billsnature wrote:
Holy sh*t! That is way more spectacular than I was expecting for the first gen. firmware. I just hope it works reasonably well with the 200-600 at 15 to 20 FPS. If it does I will be thrilled to death.
Alex- this news made my day! The 200-600 works very well for me size wise. Thank you much...I am happy to update you on TP F’s.... if you have not heard already by the time I return home.
Alex, did you have any sharpness issues with the 200-600 like those reported by Mark Galer? When the A1 focused using bird eye AF, how accurate is the AF on the eye?
somersettr wrote:
Alex, did you have any sharpness issues with the 200-600 like those reported by Mark Galer? When the A1 focused using bird eye AF, how accurate is the AF on the eye?
I talked and exchange data with Mark the other day. He sent me few images in question. I think I know what caused it but will try to replicate since the condition when he shot is different than mine. Will update.
What about the keeper rate with the 200-600 for BIF and for perched birds? Any comparison (from your memory) with a9 under same weather conditions and type of birds? Better, same, worse?
somersettr wrote:
Alex, did you have any sharpness issues with the 200-600 like those reported by Mark Galer? When the A1 focused using bird eye AF, how accurate is the AF on the eye?
i talked to Mark and we exchange data. What it seem is the condition of where he shoot it. He also compare it with 135GM in term of sharpness. I'll try to see if i can replica the issue he had.
TravelinBriNY wrote:
Just to reiterate what some others have said, impressive in the video, would love to see a few examples of how the results came out.
I don't have the membership here so I can't upload images. I posted it on my FB and IG
That looked really promising. But, it leaves me still a little skeptical for one main reason:
When I shoot BIF with my a7rIV/200-600, I have noticed that I get a fair number of images where, when I check the actual focus spot in the captured image, it is not focused where the green box was showing when I released the shutter.
In other words, to be really convincing, I would want to see captured images. Ideally, with the actual focus spot shown.
stuartv wrote:
That looked really promising. But, it leaves me still a little skeptical for one main reason:
When I shoot BIF with my a7rIV/200-600, I have noticed that I get a fair number of images where, when I check that actual focus spot in the captured image, it is not focused where the green box was showing when I released the shutter.
In other words, to be really convincing, I would want to see captured images. Ideally, with the actual focus spot shown.
Actual focus spots are hard to show in a moving object because what you see in the VF is already past tense.
mogul wrote:
Actual focus spots are hard to show in a moving object because what you see in the VF is already past tense.
I'm not sure I understand your point. When I Preview an image on my camera, I can zoom in on the image to whatever the focus point was. If BEAF is working right, then when you zoom in on a Preview, it should zoom in on the bird's eye, right?
mogul wrote:
Actual focus spots are hard to show in a moving object because what you see in the VF is already past tense.
In theory though with 240hz (or 120hz) refresh and 120AF calcs per second the a1 should be less past tense than previous cameras, and a ton better than the 30hz IIRC AF on the RIV.
buffalowolff wrote:
In theory though with 240hz (or 120hz) refresh and 120AF calcs per second the a1 should be less past tense than previous cameras, and a ton better than the 30hz IIRC AF on the RIV.
I think that is only 20cps.
