Here is a sequence I took using pre capture. I am using both the 400 DO II lens and the 500 II lens. Took several thousand photos in every possible angle and speed of the bird. This sequence is one of the more simple, I thought the pics should have been in focus. EVERY shot I took using the two lenses were out of focus when using pre-capture. You can see the AF is lagging very bad.
Oddly enough if I turned off pre-capture, when the bird started to move most all were in focus. Not only that but on the 400 and 500 the AF speed was so fast I could actually feel the torque. Something I have never noticed before. I even got some swallows in flight shots with no problem.
My thinking at this point is the camera gets bogged down with information and gets sluggish. Or Canon is stopping the older EF lenses from working properly in pre-capture.
Next, I need to rent the 100-300mm lens and see if I get the same results.
A few thoughts, if you are going to use pre-capture. Try to get a huge depth of field.
There are many reasons to get the R5m2, but if using these two lenses for birding it is a joke. A work in progress for sure.
It’s been talked about quite a bit here. The AF is not fast enough to keep up most of the time. You get better results when bird flies left or right instead of toward the camera.
Let us know how your experiment goes with the RF 100-300 f/2.8. I haven't noticed the problem with my R5 MkII in pre-capture with any of the RF lenses.
I don't find pre capture all that useful , if you're going to have to focus on the subject then pushing the button isn't much to ask. It's one of the reasons I sold the R5II and kept the R3.
gkinard1952 wrote:
Here is a sequence I took using pre capture. I am using both the 400 DO II lens and the 500 II lens. Took several thousand photos in every possible angle and speed of the bird. This sequence is one of the more simple, I thought the pics should have been in focus. EVERY shot I took using the two lenses were out of focus when using pre-capture. You can see the AF is lagging very bad.
Oddly enough if I turned off pre-focus, when the bird started to move most all were in focus. Not only that but on the 400 and 500 the AF speed was so fast I could actually feel the torque. Something I have never noticed before. I even got some swallows in flight shots with no problem.
My thinking at this point is the camera gets bogged down with information and gets sluggish. Or Canon is stopping the older EF lenses from working properly in pre-capture.
Next, I need to rent the 100-300mm lens and see if I get the same results.
A few thoughts, if you are going to use pre-capture. Try to get a huge depth of field.
There are many reasons to get the R5m2, but if using these two lenses for birding it is a joke. A work in progress for sure.
Here's a thread you can study up on. Bottom line is, don't expect much for small birds quickly jumping off perch or coming toward the camera. You'll get some shots in focus on occasion but don't expect a high keeper rate, even when using any new RF lenses:
EB-1 wrote:
AF is not good in the pre-continuous shooting mode. There are several threads about it.
EBH
If you got the timing of the bird departure correctly, say by guessing, just holding the shutter down until the bird goes, or another way "mimicking" the function of pre-trigger, with the R5 or the R3, the first few frames were just as blurry as they're today with recapture. There's threads about that, too. The AF simply doesn't reliably trigger on such a sudden movement of a small Tweetie that departs rapidly. You can try the same experiment with an R5m2 or R1 without precapture, and the result will be the same. This new tool simply makes it trivial for people to see, before it was an art.
stanj wrote:
If you got the timing of the bird departure correctly, say by guessing, just holding the shutter down until the bird goes, or another way "mimicking" the function of pre-trigger, with the R5 or the R3, the first few frames were just as blurry as they're today with recapture. There's threads about that, too. The AF simply doesn't reliably trigger on such a sudden movement of a small Tweetie that departs rapidly. You can try the same experiment with an R5m2 or R1 without precapture, and the result will be the same. This new tool simply makes it trivial for people to see, before it was an art....Show more →
