this post was submitted on 30 Nov 2023
1 points (100.0% liked)

Photography

24 readers
1 users here now

A place to politely discuss the tools, technique and culture of photography.

This is not a good place to simply share cool photos/videos or promote your own work and projects, but rather a place to discuss photography as an art and post things that would be of interest to other photographers.

founded 1 year ago
MODERATORS
communick@viewfinder.pro
1
Understanding relative focal length with crop sensors (alien.top)
submitted 11 months ago by aLuckyFourteen@alien.top to c/photography@viewfinder.pro
5 comments fedilink hide all child comments
 

Hi all,

I'm trying to better understand relative focal length. I shoot with a Nikon D500 (APS-C) and up until now have done mostly sports photography. I'm trying to get more into street photography but trying to understand what I'll be shooting with based on the lenses that I currently own and I'm a little confused. Can you please confirm if my thinking here is correct.

Here are the lenses I currently own and (my assumption about the relative focal length with this crop sensor camera):

  • Nikon AF-S 70-200mm f/2.8E FL ED VR (105-300mm)
  • Nikon AF-S 50mm f/1.8G (75mm)
  • Nikon AF-S 35mm f/1.8G DX (35mm since it's a "DX" lens)

Are my assumptions correct? If so, do I not have a true 50mm focal length lens for this camera body? I was looking to shoot with a 50mm to start out my street photography journey.

Thank you for the help.

โ€‹

you are viewing a single comment's thread
view the rest of the comments
[โ€“] obviouslyCPTobvious@alien.top 1 points 11 months ago

For understanding crop sensors I like this diagram. Seeing it this simplified makes it very clear what the difference is. The amount of light coming in is always the same. The only difference is the size of the sensor that sits at the focal plane is smaller

https://i.imgur.com/L14EOM9.jpg