Question 1

"record rich and detailed 4k ultra hd or full hd videos up to 29 minutes 59 seconds" my d7500 cuts 4k videos into ~5 min long clips. yours too? why?

Accepted Answer

Nikon's manual is vague with that "up to" statement.  I believe the limit is due to the FAT32 filesystem - the standard filesystem for SDHC cards 32G and smaller -  having a max file size of 4GB, so numerous files are required.  Check the card - if that 5 minute clip is about 4GB in size, there's your answer.  64GB and larger SDXC cards use exFAT filesystem, which doesn't have that 4GB/file limit.

Question 2

Please tell me feedback on touch autofocus of D7500

Accepted Answer

Will the D7500 work with my older lens. Currently using D90?

Question 3

I'm mostly into scenery/nature/landscape/astro photography.  What would be the main advantages of upgrading from a D3300 to this model?

Accepted Answer

I bought this body largely for its awesome ISO specs, and was quite impressed... until I wasn't.  I was on my first big trip in the field (Canadian Rockies on a super clear moonless night) and continuously got frames with a red band on the right edge of the frame (short edge).  I experimented again when home in a completely dark room, eye-cap on, etc, etc.. to get exactly the same issue.  I went to my local camera shop, and they were able to easily recreate the problem with their own D7500.  Nikon support has not had any solution in the last 3 months.  If you are looking for high ISO and astro photography, I would stay away from this camera.

Question 4

I have watched videos of what seems a lot of video focus issues.  In actual use, have you found this to be true, if so, any work arounds/Nikon fixes?

Accepted Answer

I produce many videos in auto focus and I didn't find it to be an issue.  I followed a bee hoovering harvested grapes on one video, and the bee was tracked very nicely.  You can also switch to manual focus in some cases.  Also, I don't just shoot a clip.  I shoot several clips and I shoot them a bit longer.  If something jumps out of focus, I just remove that part of the clip in post processing.  In general, though, I don't have to do this.  The lack of focus in video is exaggerated by the internet. However, I got inspired by some videos by people who shot the D7500 entirely in autofocus and were successful.  You have to know what you are doing too.

Aspect ratio	16:9, 3:2
Compatible mountings	Nikon F
Image stabilisation	Optical
Maximum focal length	140 Millimeters
Photo sensor technology	CMOS
Supported file format	RAW, JPEG, MP4

Nikon D7500 with AF-S 18-140mm f/3.5-5.6G ED VR Lens -SLR Camera, Black

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