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High ISO Comparison - Canon 5D Mark IV vs 5DSr

Bought a 5D Mark IV last week as a back up body, especially for low light situations now that Short Eared Owl season is almost upon us!

 

I don't normally venture above 1600 ISO with the 5DSr and try and keep to 800 ISO or less as a rule. From this test and the cropped section below you can see why!

 

I am very pleased with the 5D Mark IV so far, especially being able to use all 61 focus points at F8. I have been trying the 2x extender with my 600mm lens and AF aquisition and tracking seemed pretty good.

 

Reviews on line often say that ISO 3200 is usable for the 5D Mark IV for birds in flight and I think they might be right.

 

Photos were taken with the 600mm F4 II + 2x III.

 

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Uploaded on October 28, 2019