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Dores
Joined: 06 Aug 2010
Posts: 11
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 Posted: Tue Sep 07, 2010 4:45 am Post subject: Haze on front element, how to deal with this? |
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Dores wrote:
I bought this dirt cheap Pentacon 29mm a short while ago. It has some haze or something on the front element, or what is it really? Is it possible to remove it, preferrably without disassembling the whole lens?
Here is a picture of it, you can see that all but the center of the front element is quite hazy.
It does affect the photos by adding lots of flare and glare, and quite a bit of softening. While I think that's just cool, it would be fun to at least reduce it a little bit.  |
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rawhead
Joined: 09 Feb 2009
Posts: 1525
Location: Boston, MA
Expire: 2014-04-29
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| Posted: Tue Sep 07, 2010 4:51 am Post subject: |
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rawhead wrote:
Haze usually occurs on the inside, so there's no way to do anything about it without disassembly.
However, I'd say the odds are less than 50% that even then, you can take care of it. Haze, I've found over the past couple years I've been CLAing my own lenses, tend to be pretty darn permanent.
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Excalibur
Joined: 19 Jul 2009
Posts: 5019
Location: UK
Expire: 2014-04-21
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| Posted: Tue Sep 07, 2010 7:00 am Post subject: |
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Excalibur wrote:
***However, I'd say the odds are less than 50% that even then, you can take care of it. Haze, I've found over the past couple years I've been CLAing my own lenses, tend to be pretty darn permanent.***
Well you might be right as the front inside element of my Tokina zoom has haze, and I took the front element out....and either the haze is sandwiched between two elements or the popular lens cleaning fluids do not work.
Anyway this haze doesn't seem to effect sharpness as I've compared it with other lenses and it puts up a good show for one of Tokina's cheaper range.
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.........past gear Tele Rolleiflex and Rollei SL66.
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berraneck
Joined: 24 May 2009
Posts: 972
Location: prague, czech republic
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| Posted: Tue Sep 07, 2010 8:05 am Post subject: |
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berraneck wrote:
As i have experience with my Pentacon29/2,8.. it is quite appaling lens, so you don´t have to worry about making any mistake if destroyed during repairing it:)
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equipment doesn´t count, good photographs do |
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Tue Sep 07, 2010 8:25 am Post subject: |
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Attila wrote:
| berraneck wrote: |
| As i have experience with my Pentacon29/2,8.. it is quite appaling lens, so you don´t have to worry about making any mistake if destroyed during repairing it:) |
+1 very common lens good for to get practice and easy to repair.
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OM
Joined: 15 Jan 2010
Posts: 166
Location: Southern England
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| Posted: Wed Oct 13, 2010 10:49 pm Post subject: |
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OM wrote:
| berraneck wrote: |
| As i have experience with my Pentacon29/2,8.. it is quite appaling lens |
Not always - some are excellent:
http://forum.mflenses.com/pentacon-auto-29-2-8-mc-very-nice-t33165.html
Why not take some shots and see if you notice the haze |
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tomasg
Joined: 01 Nov 2009
Posts: 1135
Expire: 2014-04-28
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| Posted: Fri Oct 15, 2010 6:23 am Post subject: |
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tomasg wrote:
I completly agree with Attila, it`s a simple lens to repair, to acess the back of the front element just unscrew the ring around it, find the right tool, be careful not to scratch the lens. From the photo you`ll need a small screwdriver, i`am guessing you don`t have a spanner. Lay the lens on one side, don`t do it while the lens is in a vertical position!
best regards
tomas |
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