Due to a bad case of K-1 fever
, I've been on a bit of a lens-buying binge. I bought a number of lenses on eBay where the descriptions sounded good (no scratches, no fungus, etc.), but I've been disappointed with the condition of most of them (and I still need to decide whether to return them, ask for discounts, or keep them). (This is my first post to PF, after having been an occasional lurker for years, so forgive me if I'm doing anything inappropriate here.)
I need some advice about how I'm evaluating the condition of lenses and whether my expectations for the condition claims are unreasonably high in general (or perhaps it's just my expectation of what to expect from eBay lens purchases that's too high?
). (I'll note that I do have pretty strong perfectionist tendencies.) Also, if you have suggestions on avoiding these sorts of disappointments, I'd like to hear those. (I was probably over-eager to buy some of the lenses, and should have spent time probing the sellers about exactly how they inspected the lenses, getting more photos, etc., and I probably also paid somewhat high prices due to my eagerness.)
I'm going to post photos of three different purchases, showing their condition issues. Each of these lenses was described using terms such as "no scratches", "no fungus", flawless glass". When I looked at these lenses in normal room light (or even held close to a 60-watt bulb), they all looked pretty nice. But then I looked with a flashlight, reflecting the light off the front and rear elements at different angles (which revealed most of the issues shown here), and also shining the light through the lenses. (I should note that the photos are quite magnified, and the appearance of the scratches is probably exaggerated a bit, due to both overexposure/blown highlights, and movement of the hand-held flashlight during the longish exposures.)
First up, there's a Takumar 35mm f2.3 screwmount lens (for which I paid about $235). With the flashlight reflected off of it, quite a few fine scratches became visible, most on the exposed surface of the front element, but some inside as well. I also found a small spot that I suspect might be fungus.
I realize that most of the scratches on these lenses probably won't affect the image quality much (if the effects are discernible at all), but I'm wondering if I'm getting a fair deal. If I were to resell these lenses online in the future, I'd feel obligated to disclose these flaws, which presumably would lower the prices that I'd be likely to get for them. The possible fungus concerns me somewhat as well. I've read differing opinions on the risk of transmitting fungal infections from one piece of equipment to another. (I suppose whether one lives in a high-humidity climate (which I don't) would be relevant here.)
Anyway, please have a look at the photos of the Takumar's front element (the first 4 photos) and the rear element.
(The possible spot of fungus is inside the lens, visible through the rear element. I'd like to know whether people think it looks like fungus or not.)
To be continued...