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AF 50mm 1.7 - Oily Blades - Help!

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birkenstockwalk View Drop Down
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Posts: 17 		Post Options Post Options   Quote birkenstockwalk Quote  Post ReplyReply Direct Link To This Post Topic: AF 50mm 1.7 - Oily Blades - Help!
    Posted: 30 November 2009 at 16:51
Hello,

I just received a 50mm 1.7 lens from Ebay and the blades are oily. Is it hard to fix them on your own? I just read the howto thats on the internet, but im scare to pull it apart. Is there anyone in South Florida that could maybe help me pull it apart and clean it?

Let me know your thoughts.

Thanks
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claesse View Drop Down
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Posts: 91 		Post Options Post Options   Quote claesse Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2009 at 17:23
Try this

http://www.pbase.com/pganzel/disassembly_repair_of_maxxum_50mm_lens

//claesse

Edit: Have done it myself on both the 50 1.4 and 1.7. Took me about 3 hours the first time. A little careful the first time. Read only petes instructions carefully so you can fix it. Using chemically pure petrol (White-gas?) to remove the oil.

Edited by claesse - 30 November 2009 at 17:43
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birkenstockwalk View Drop Down
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Posts: 17 		Post Options Post Options   Quote birkenstockwalk Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2009 at 23:27
thanks for the reply. Thats what I was looking at before. Im just scared im not going to be able to put it back together when im finished.
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birkenstockwalk View Drop Down
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Posts: 17 		Post Options Post Options   Quote birkenstockwalk Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2009 at 23:32
what is chemically pure petrol?
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santiclaws View Drop Down
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Posts: 528 		Post Options Post Options   Quote santiclaws Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2009 at 23:36
Unless you got a spectacular deal, if the oily blades were not mentioned, I'd return it. Why go through the hassle? There is no shortage of 50mm lenses here or on ebay.
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jakke View Drop Down
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I use Ethanol to clean the blades
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JohnHH View Drop Down
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Posts: 173 		Post Options Post Options   Quote JohnHH Quote  Post ReplyReply Direct Link To This Post Posted: 30 November 2009 at 23:59
I had the same thing happen to me about a year ago with a 28mm f2.8 Minolta lens. I took it to a local camera shop (So.Cal.) known for excellent work and it cost about $65 to have it cleaned.

Hope this helps with your decision.
a700 w/vg-c70am, a350 w/vg-b30am, a100 and some lenses.
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rockhound View Drop Down
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Posts: 252 		Post Options Post Options   Quote rockhound Quote  Post ReplyReply Direct Link To This Post Posted: 01 December 2009 at 00:21
Hopefully you got a good deal on it. If you paid full price (~100 US), and weren't advised that it had oily blades, then you should either send it back for a refund, or ask for atleast half of your money back.

If you get half of your money back, then, if you can fix it, it becomes a very good deal. If you don't think you can fix it, or are too scared to try, then I would insist on a refund, including the return shipping as it is the sellers fault for shipping you a defective item.
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waleskeg View Drop Down
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Posts: 2186 		Post Options Post Options   Quote waleskeg Quote  Post ReplyReply Direct Link To This Post Posted: 01 December 2009 at 01:22
Originally posted by rockhound rockhound wrote:

Hopefully you got a good deal on it. If you paid full price (~100 US), and weren't advised that it had oily blades, then you should either send it back for a refund, or ask for atleast half of your money back.

If you get half of your money back, then, if you can fix it, it becomes a very good deal. If you don't think you can fix it, or are too scared to try, then I would insist on a refund, including the return shipping as it is the sellers fault for shipping you a defective item.


Absolutely right, it is "NOT AS DESCRIBED" and should be returned or at least partial refund of $50-$75 for service & repair.
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coyote1086 View Drop Down
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Posts: 1630 		Post Options Post Options   Quote coyote1086 Quote  Post ReplyReply Direct Link To This Post Posted: 01 December 2009 at 01:48
I think the 50/1.7 is the easiest lens to disassemble and re-assemble. As long as you don't lose any screws and that tiny little spring under the chip, you should be fine.

I found the hardest part is to open the front rim. I did not have the grip tool in Pete's guide, but someone suggested to use a bathtub drain plug and it works wonderfully.

Good luck. It is fun.
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Shade View Drop Down
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Posts: 259 		Post Options Post Options   Quote Shade Quote  Post ReplyReply Direct Link To This Post Posted: 01 December 2009 at 03:53
I personally wouldn't want to go through the hassle of cleaning it, especially if I paid a fair amount for it. So I'd go for other people's suggestions here, return it for not describing it.
Pictures are memories frozen in time~
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birkenstockwalk View Drop Down
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Posts: 17 		Post Options Post Options   Quote birkenstockwalk Quote  Post ReplyReply Direct Link To This Post Posted: 01 December 2009 at 03:59
i paid 80 bucks for two 50mm 1.7 prime lenses. One is the newer version but works perfectly! the older version metal built one is the greasy one.
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birkenstockwalk View Drop Down
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Posts: 17 		Post Options Post Options   Quote birkenstockwalk Quote  Post ReplyReply Direct Link To This Post Posted: 01 December 2009 at 04:00
i paid 80 bucks for two 50mm 1.7 prime lenses. One is the newer version but works perfectly! the older version metal built one is the greasy one.
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Shade View Drop Down
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Posts: 259 		Post Options Post Options   Quote Shade Quote  Post ReplyReply Direct Link To This Post Posted: 01 December 2009 at 04:05
80 bucks for two 50/1.7? Nice deal!

Well I guess you can go clean the other one yourself then! ;)
Pictures are memories frozen in time~
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