Lens-Camera matches
Aug 23, 2019 13:58:46 #
Drbobcameraguy wrote:
Sorry for the spelling. I worked 14 hrs and was on my way to sleep. The object is the magnification. Maybe someone else can explain it better? Please.
I just can't understand the concept that if the image is the same how the magnification can be different. But then I can't understand all the idiots on the web that say that crop sensor lenses f stops should be multiplied. If you shoot a photo on film or a FF with a 50, and then put a 100mm lens on a crop frame body, and crop the image from the FF to match, the dof appears to be the same..
Aug 23, 2019 14:32:55 #
Bill P wrote:
I just can't understand the concept that if the image is the same how the magnification can be different. But then I can't understand all the idiots on the web that say that crop sensor lenses f stops should be multiplied. If you shoot a photo on film or a FF with a 50, and then put a 100mm lens on a crop frame body, and crop the image from the FF to match, the dof appears to be the same..
All I know is if I take a picture with a Dr lense of 300mm And an Fx lense of 300mm the take a picture with a 450mm dx lense The 300mm ff lense is not the same size magnification wise. I hope someone will jump in and help us out.
Aug 23, 2019 14:41:29 #
Bill P wrote:
I just can't understand the concept that if the image is the same how the magnification can be different. But then I can't understand all the idiots on the web that say that crop sensor lenses f stops should be multiplied. If you shoot a photo on film or a FF with a 100, and then put a 50mm lens on a crop frame body, and crop the image from the FF to match, the dof appears to be the same..
Corrected, I got the 50 and the 100 in the wrong place in the sentence.
Aug 25, 2019 22:50:22 #
Drbobcameraguy wrote:
It is not true that you get more reach with a aps-... (show quote)
Your 2 lenses are both 300mm, they will give you the same result. Magnification happens when you print images taken by a full-frame and APS-C at the same size. one will be 300mm the other will be 450mm
Aug 25, 2019 22:52:55 #
Drbobcameraguy wrote:
All I know is if I take a picture with a Dr lense of 300mm And an Fx lense of 300mm the take a picture with a 450mm dx lense The 300mm ff lense is not the same size magnification wise. I hope someone will jump in and help us out.
A 200mm lens on an APS-C will output the same FOV as a 300mm lens on a full-frame camera.
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