MegaSack DRAW - This year's winner is user - rgwb
We will be in touch
So if I have a lens that's 42mm focal length and can focus down to 20cm distance, or a 150mm lens that focuses down to 90cm, which one will make the bigger picture of say, a flower, where I am free to shoot from any distance?
Is there a formula to calculate the effective size?
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Hope your maths is ok, this should give you the image sizes
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Try Ken's Page
[url= http://www.kenrockwell.com/nikon/nikkor.htm ]Kenrockwell[/url]
So.. is f=35mm in a traditional camera?
No wait - it's 50mm isn't it, since a 50mm lens = 1:1
yarp, that's right 50mm is 1:1 on a traditional 35mm camera or full frame DSLR.
F- focal length is the 42mm and 150mm that you refer to in your op