What does this statement mean? (Tamron 180mm macro)


Status
Not open for further replies.

tltan

Senior Member
Apr 18, 2005
2,484
0
0
www.flickr.com
#2
not all lens show effective aperture.

For Tamron 90mm which I have, although you have set it to f2.8, at minimum focusing distance, the camera reflects f5.6 which is the effective.

think thats what it means. Read that some lens actually shows whatever you set although its not performing at that aperture.
 

Status
Not open for further replies.
Top Bottom