What are you looking for when buying used lenses?

8 years 5 months ago #466955 by Connie K Photos
I started to shop around for used lenses today and honestly, I'm not sure when I have one in front of me, what can I look for to insure I'm getting something that isn't messed up?  Appearances can be deceiving here.  


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8 years 5 months ago #466962 by Hassner
I will need help on this one.
Let me see what I can remember.
1. Fungus growing on the lens. Always inside, between lenses. Look against the light through the lens.
2. Focus. Take a photo at minimum and max focus, see if your pic is sharp. Zoomed in and out.
3. Aperture. Take pics (at manual settings so you can see expose increase and decrease) to see if aperture ring opens and closes all the way.
4. If the it is a push/pull zoom, see if it is not loose and moves just by pointing the camera to the floor.


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8 years 5 months ago #466963 by Tony Imaging
:agree: good post.  Might I add bring your camera and if an auto focus lens, listen very carefully to the movement as the lens focuses.  Inspect the glass for scratches and dings.  I like to look at the lens cap for wear.  If it shows good wear, the person is anal about using the cap. 

I know many photographers who don't use their lens caps at all.  Drives me bonkers when I see them setting their lenses face down in their camera bags.  :pinch:  


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8 years 5 months ago #467020 by effron
Yes, bring a camera and also bring a flashlight to look for imperfections and fungus.....Buying online? Make sure there is an expressed return policy, and never use a low or unrated seller....

Why so serious?
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8 years 5 months ago #467022 by Screamin Scott
The posts so far have pretty much covered the bases. One point I'd make about scratches on the front element, in most cases the effects of them never show up on the image unless the lens element is totally trashed. Scratches on the rear element are another story. I there are scratches you can likely get it for a lot less as most people think scratches ruin a lens. My cheapest buy was a 20mm F4 Nikkor for a paltry $35 (shipping included). No impact on the resultant image even though it had a faint scratch dead center in the optic ...
kurtmunger.com/dirty_lens_articleid35.html

Scott Ditzel Photography

www.flickr.com/photos/screaminscott/

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8 years 5 months ago #467172 by Flash Steven

Screamin Scott wrote: The posts so far have pretty much covered the bases. One point I'd make about scratches on the front element, in most cases the effects of them never show up on the image unless the lens element is totally trashed. Scratches on the rear element are another story. I there are scratches you can likely get it for a lot less as most people think scratches ruin a lens. My cheapest buy was a 20mm F4 Nikkor for a paltry $35 (shipping included). No impact on the resultant image even though it had a faint scratch dead center in the optic ...
kurtmunger.com/dirty_lens_articleid35.html



:agree:   was thinking the same 

Canon 7D w/grip, Canon 40D, Canon 70-200mm f2.8 IS L Canon MPE 65mm f2.8 macro; Sigma 70-300mm f2.8; Sigma 150mm f2.8 macro; Sigma 8-16mm f4.5-5.6
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8 years 5 months ago #467249 by Dan Spade
Don't forget to ask for a receipt.  If they look or sound shady, run.  


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8 years 5 months ago #467823 by CaptNemo
I've bought a couple used lenses in the past.  Putting aside a inspection like a hawk, I ALWAYS bring my camera and computer.  So I can take some shots and quickly upload them to computer to inspect.  IMO that is the best way to test on the fly.  Let the buyer know ahead of time that you will need 15 minutes.  That way you get the time you need to test properly.  I always meet at a Starbucks, that way they can have a coffee while I test lens.  


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8 years 5 months ago #467969 by KENT MELTON
Use it and listen to it before you buy it  


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8 years 4 months ago #468262 by Fiesta!

effron wrote: Yes, bring a camera and also bring a flashlight to look for imperfections and fungus.....Buying online? Make sure there is an expressed return policy, and never use a low or unrated seller....



Fungus is only going to be an issue with really old lenses correct?  


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