Is this look like a crack or a deep scratch? *Minolta 80-200 f4.5 kit*
I asked this back in 2018, but didn't have the means to get a proper balanced photo of the defect. I know I could edit the 2018 post, but it's 5 years old and I had bad photos.
I have had this lens for quite a few years, as well as a mint 50mm 1:7, and both are "common" as the 50mm was often a kit lens, or a popular add-on at the time it was new. It has no issues and I got a chance to take it out 5 years later; it is freaking good. However, I took this one out with me as well to better inspect it (as well as a backup Sigma with similar range; 28-200 f1:38-5.6 UC) just in case; glad I did, as it was not pretty.
I'm pretty much just about 100% confident this is a crack, which is why I reverted back to the Sigma but was also prepared with a spare Quantaray* which doesn't go out as far, but is made by Sigma. Is this look usable, or should I dump it in a parts lens lot?
*PLEASE DO NOT GIVE ME ANY CRAP about this based on the name like dedicated forums. I know about how quick some people are to rip on someone for having a Quantaray despite most being made by Sigma and not Tiffen since it's a Ritz special. Mine look like Sigmas.
Bu iyi bir soru mu?
@nick - Is the Yellow/Orange spot a light refection? If it is then I would say its most likely a scratch. Optical glass is on the softer side and there are metal coatings to prevent flares and often on the outer surface a harder Quartz or Sapphire coating is deposited.
I had a scratch on a very expensive lens and as its no longer made replacing it was not in the cards. I tried windshield epoxy using a vacuum to fill the gash being careful not to over do it as you can't polish it down without damaging the coatings around it which would make more of a mess!
@danj It is a reflection but I had to hold off he lens at a weird angle to show where it is. Sad to say, but the lens design basically makes the filler strategy borderline impossible.
Guess I should consider myself lucky it happened on a throwaway lens I can throw away and not care.