What lens would give a 2-3 degree FOV with the Z50?

Started 3 months ago | Discussions
shaffermc Forum Member • Posts: 59
What lens would give a 2-3 degree FOV with the Z50?

I'm currently using a telescope and a CCTV camera for a webcam. I measured and it's about a 2 or 3 degree field of view. I wanted to replace the setup with my Z50 and a telephoto lens. I have no idea what focal length I would need. Does anyone have any idea?

 shaffermc's gear list:shaffermc's gear list
Nikon D3100 Nikon Z50 Nikon AF-S DX Nikkor 18-140mm F3.5-5.6G ED VR
Nikon Z50
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Digital Shutterbug Veteran Member • Posts: 5,269
Re: What lens would give a 2-3 degree FOV with the Z50?

shaffermc wrote:

I'm currently using a telescope and a CCTV camera for a webcam. I measured and it's about a 2 or 3 degree field of view. I wanted to replace the setup with my Z50 and a telephoto lens. I have no idea what focal length I would need. Does anyone have any idea?

I'm guessing you are talking about horizontal FOV, but here is some data that might help.

400mm   3.4º hor., 2.2º vert., 4.0º diag.

500mm   2.7º hor., 1.8º vert., 3.2º diag.

600mm   2.2º hor., 1.5º vert., 2.7º diag.

800mm   1.7º hor., 1.1º vert., 2.0º diag.

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Steve

jthomas39 Regular Member • Posts: 480
Re: What lens would give a 2-3 degree FOV with the Z50?
1

This lens calculator has field of view and lots of other lens info, including width of view in feet or meters at a selected distance.

Digital Shutterbug Veteran Member • Posts: 5,269
Re: What lens would give a 2-3 degree FOV with the Z50?

That's a very handy website. A lot of information to be gained. Thanks.

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Steve

dspoel
dspoel Regular Member • Posts: 406
Re: What lens would give a 2-3 degree FOV with the Z50?
3

Digital Shutterbug wrote:

shaffermc wrote:

I'm currently using a telescope and a CCTV camera for a webcam. I measured and it's about a 2 or 3 degree field of view. I wanted to replace the setup with my Z50 and a telephoto lens. I have no idea what focal length I would need. Does anyone have any idea?

I'm guessing you are talking about horizontal FOV, but here is some data that might help.

400mm 3.4º hor., 2.2º vert., 4.0º diag.

500mm 2.7º hor., 1.8º vert., 3.2º diag.

600mm 2.2º hor., 1.5º vert., 2.7º diag.

800mm 1.7º hor., 1.1º vert., 2.0º diag.

The world's most expensive webcam it will be :/

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David.

 dspoel's gear list:dspoel's gear list
Canon EOS 5D Mark II Nikon Z7 Nikon AF-S Micro-Nikkor 105mm F2.8G IF-ED VR Canon EF 40mm f/2.8 STM Nikon 35mm F1.8G ED +5 more
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