Originally posted by Cerebum Scrub that, its an industar 61, the rather nice black and silver version. I have got it, attached to a zorki 4 for £18. Even if it is pants it won't be a great loss but I have managed to get something good from every lens I own so I am sure it will be fine
Originally posted by Cabessius It is an Industar 61 L/D.
Originally posted by stevebrot Maybe or maybe not, at least as far as naming goes. All I-61 in M42 mount are labeled L/D L/Z. Most (all?) of the black with silver trim accent I-61 (so-called "black") in LTM are labeled "И-61Л/Д". Black and silver banded ("zebra") and silver with black accents ("panda") in LTM are simply labeled "И-61". All I-61 in both mounts have lanthanum-doped glass regardless of labeling.
Soooo...all are potentially very decent performers. @Swift1 has made some very credible images with his LTM "zebra" on his Zorki 4.
Steve
Steve is right. For the most part all Industar-61 lenses are optically the same, a Tessar type formula with one Lanthanum element, although there are slight variations in focal length (52mm, 53mm, and 55mm). The silver and black versions are just labeled (in cryllic) I-61, while the all black versions are labeled (also in cryllic) I-61 L/D
Mine is actually an all black 53mm L/D from the late 60s (I think), and I haven't tried it on my Zorki 4. I have used it on the FED 3 it came on, my Bessa R, and recently I've used it on my Canon 7. It's a great lens.
Here's a Flickr album of images that I've made with it,
Industar-61 L/D 53/2.8 | Flickr