I have seen a few examples of constant aperture zooms (eg a 28-100mm f/4 Ricoh.) in the secondhand markets where the aperture appears to be not fully open (visibly non-round hole) at some zoom settings. Did some designs actually do that intentionally to enforce the constant aperture, or are these just cases of mechanical defects where unrelated mechanical parts interfere with each other due to friction or bad justage?
Subscribe to:
Post Comments (Atom)
-
Normally I use lens-hoods on every of my glasses (flairlight blocker, lens protection). Some days ago a bought the Canon EF 40mm STM (Panca...
-
Whenever I compare the exif data displayed by Flickr or the data on Lightroom (3.4), I can't avoid getting my mind blown for the simple ...
-
I've just returned from a trip. One of the locations was very dark site. I took a photo with 4 minutes exposure for the foreground. The ...
-
I got lost finding the right remote shutter release for my Canon 5D Mark iii. I have the Hänhel Combi for Canon, which I use to use with Ca...
No comments:
Post a Comment