BIRD IN FLIGHT ONLY -- share your BIF photos here

My friend at the state park this morning, it swooped down into the tall grass but came up empty handed. R5 + 100-500 + 2xTC. FWIW, today was my first time using the R5 with firmware 1.5.0. Eye tracking and focus in general are more R3-like just slower, and more importantly I didn't experience any AF problems with this big bird or the little goldfinches I saw earlier. YMMV.

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Those are some of my BIF tries in Yucatan.
One question to the experts. Which max shutter speed do you use for BIF? Do you pan?
I usually use a max shutter speed of 1/1500, but often forget to switch to the correct mode to have it enabled.
So the royal tern was taken at a shutter speed of 1/640 and there is no blur.
All R5 + RF 100-400

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Beautiful series.
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Well done, Oskar.
 
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Those are some of my BIF tries in Yucatan.
One question to the experts. Which max shutter speed do you use for BIF? Do you pan?
I usually use a max shutter speed of 1/1500, but often forget to switch to the correct mode to have it enabled.
So the royal tern was taken at a shutter speed of 1/640 and there is no blur.
All R5 + RF 100-400

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You were lucky with 1/640s. The faster the better for difficult BIF shots 1/3200-1/4000s. But, if the bird is moving in a simple straight line and it's not too fast and you can pan at the same speed, 1/1600 should be OK.
 
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Thank you Alan and Click. R3 is more responsive than R5 and changing AF point is much faster. What I also noticed was that using RF 800 in R3 the AF area covers the whole sensor, unlike R5 that only the center area was usable.
I prefer to use the 100-500 on the R5 for BIF for both the reasons you say. It is very responsive and I like a wide field of view for birds that are fast flying or erratic. Using the 1.4x TC at 700mm doesn't seem to slow it down when I need a longer lens.
 
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I prefer to use the 100-500 on the R5 for BIF for both the reasons you say. It is very responsive and I like a wide field of view for birds that are fast flying or erratic. Using the 1.4x TC at 700mm doesn't seem to slow it down when I need a longer lens.
That is true. When comparing RF100-500 and RF800, my hypothesis was that responsiveness may also be affected by the camera. I can say that yes, everythingelse the same, RF800 is more responsive on R3 compared to R5. Is it significant difference? Perhaps not. So far I haven't find bird photography cases that R3 can do and R5 cannot. That is why I am trying BIF now.
 
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