I read long ago that the M35 f2.8 was prone to
grease causing the aperature to stick. When I bought
mine, it had a sluggish aperature. Local repair was
under $40, and the repairman did report grease as the
cause. Hope this helps.
-Lon
From: Cotty [EMAIL PROTECTED]
Date: 2006/05/12 Fri PM 10:43:14 GMT
To: pentax list pentax-discuss@pdml.net
Subject: Re: Aperture repair on a M lens?
On 12/5/06, mike wilson, discombobulated, unleashed:
Or a mashie niblick.
Speaking of which, any news
Cath's been
On 13/5/06, mike wilson, discombobulated, unleashed:
Hopefully, pictures of the reluctant star this evening. IAC, will
report back then.
Labour is that time sandwiched between a life with sleep, and a life
without sleep!
Cheers,
Cotty
___/\__
|| (O) | People, Places, Pastiche
From: Cotty [EMAIL PROTECTED]
Date: 2006/05/13 Sat AM 07:16:30 GMT
To: pentax list pentax-discuss@pdml.net
Subject: Re: Aperture repair on a M lens?
On 13/5/06, mike wilson, discombobulated, unleashed:
Hopefully, pictures of the reluctant star this evening. IAC, will
report back
On 12/5/06, alkos, discombobulated, unleashed:
... and if they are? Any sugesstions? I've got a M35/2.8 and M35/2 with
sticky apertures to repair ;-)
I usually attack stuck mount screws with some generous taps to the
driver while it is located in the screwhead, as many time as is needed
to
On 12/5/06, alkos, discombobulated, unleashed:
... and if they are? Any sugesstions? I've got a M35/2.8 and M35/2 with
sticky apertures to repair ;-)
BTW
for really bad ones you could try heating the head with a soldering iron
a few times with a minute's gap. The heating / cooling cycle will
On 11/5/06, Don Sanderson, discombobulated, unleashed:
3.) Use tiny quantities of penetrating oil and a LOT of patience.
The oil often takes a day or two to get to to where it's needed.
Don, I love you dearly but you are clearly insane ;-))
Cheers,
Cotty
___/\__
|| (O) | People,
Op Fri, 12 May 2006 01:28:22 +0200 schreef alkos [EMAIL PROTECTED]:
Don Sanderson wrote:
it's an
easy fix IF the mount screws are not frozen.
... and if they are? Any sugesstions? I've got a M35/2.8 and M35/2 with
sticky apertures to repair ;-)
Hi Alkos,
Someone suggested me off-list
From: alkos [EMAIL PROTECTED]
Date: 2006/05/11 Thu PM 11:28:22 GMT
To: pentax-discuss@pdml.net
Subject: Re: Aperture repair on a M lens?
Don Sanderson wrote:
it's an
easy fix IF the mount screws are not frozen.
... and if they are? Any sugesstions? I've got a M35/2.8 and M35/2
: Aperture repair on a M lens?
On 12/5/06, alkos, discombobulated, unleashed:
... and if they are? Any sugesstions? I've got a M35/2.8 and M35/2 with
sticky apertures to repair ;-)
I usually attack stuck mount screws with some generous taps to the
driver while it is located in the screwhead
range,
which is probably why I've had little luck with
the heat/cool method.
I'll have to try it with a bigger iron someday.
Don
-Original Message-
From: Cotty [mailto:[EMAIL PROTECTED]
Sent: Friday, May 12, 2006 1:59 AM
To: pentax list
Subject: Re: Aperture repair on a M lens
On 5/12/06, Don Sanderson [EMAIL PROTECTED] wrote:
Agreed,
IMO WD40 and other sprays have little or no place
in camera repair.
As a matter of fact I don't even own any.
I use a good quality penetrating oil either on
the tip of a toothpick or in a hypodermic syringe
with a fine insulin needle
With a lot of luck you do not need to fix the lens, it works perfectly.
graywolf
http://www.graywolfphoto.com
http://webpages.charter.net/graywolf
Idiot Proof == Expert Proof
---
Cotty wrote:
On 12/5/06, alkos, discombobulated, unleashed:
... and if they are?
You guys are all sissies. The way I do it is soak the lens in a coffee
can full of ultra fine penetrating oil for a week, and then toss the
lens in the trash. It saves a lot of frustration.
(Just joking, for those who can not tell without a score card)
As a last resort one can drill the screw
On 12/5/06, Don Sanderson, discombobulated, unleashed:
I'll have to try it with a bigger iron someday.
I'm thinking blow torch
Cheers,
Cotty
___/\__
|| (O) | People, Places, Pastiche
||=|http://www.cottysnaps.com
_
On 12/5/06, Don Sanderson, discombobulated, unleashed:
I use a good quality penetrating oil either on
the tip of a toothpick or in a hypodermic syringe
with a fine insulin needle installed.
Har, I knew there was something not right about you mate ;-)))
Cheers,
Cotty
___/\__
|| (O) |
On 12/5/06, Scott Loveless, discombobulated, unleashed:
Radio Shack sells a precision tip lubricator. It's about the size of
an ink pen and contains a clear penetrating oil. Works wonderfully on
small parts.
Scotts fathered many children using this method. Nice one mate!
Cheers,
Cotty
]
Sent: Friday, May 12, 2006 1:59 AM
To: pentax list
Subject: Re: Aperture repair on a M lens?
On 12/5/06, alkos, discombobulated, unleashed:
... and if they are? Any sugesstions? I've got a M35/2.8 and M35/2 with
sticky apertures to repair ;-)
BTW
for really bad ones you could try
Cotty wrote:
On 12/5/06, Don Sanderson, discombobulated, unleashed:
I'll have to try it with a bigger iron someday.
I'm thinking blow torch
Or a mashie niblick.
And you should be using a JIS Crosspoint screw driver. It is a different
shape from a Phillips and makes it much easier. Like this:
https://www.micro-tools.com/store/MainFrame2.aspx?Content=SearchByCategory.a
spx?CategoryCode=PAR
Also some screws are glued in with Loctite or similar. Heating
Micro-tools has messed with their web site and that link I sent didn't
work. Try this.
P.
You should be using a JIS Crosspoint screw driver. It is a different shape
from a Phillips and makes it much easier. Like this:
https://www.micro-tools.com/store/mainframe2.aspx
Search for JIS
Also some
On 12/5/06, mike wilson, discombobulated, unleashed:
Or a mashie niblick.
Speaking of which, any news
Cheers,
Cotty
___/\__
|| (O) | People, Places, Pastiche
||=|http://www.cottysnaps.com
_
I'm in the market for a new set of jeweller's-type screwdrivers. What's
the best set possible? I don't want yet another box of Chinese junk (if
you'll forgive the expression). Any recommendations?
Ta.
Cheers,
Cotty
___/\__
|| (O) | People, Places, Pastiche
||=|
If they are for working on Japanese cameras you should use JIS Crosspoint
drivers. I got this set and it works very well.
https://www.micro-tools.com/store/mainframe2.aspx
Search for 58-0318
Powell
I'm in the market for a new set of jeweller's-type screwdrivers. What's
the best set possible?
:[EMAIL PROTECTED]
Sent: Friday, May 12, 2006 5:55 PM
To: pentax list
Subject: OT - Jeweller's Drivers Rec (was - RE: Aperture repair on a M
lens?)
I'm in the market for a new set of jeweller's-type screwdrivers. What's
the best set possible? I don't want yet another box of Chinese junk
Drivers Rec (was - RE: Aperture repair on a
M lens?)
If they are for working on Japanese cameras you should use JIS Crosspoint
drivers. I got this set and it works very well.
https://www.micro-tools.com/store/mainframe2.aspx
Search for 58-0318
Powell
I'm in the market for a new set
If its for the Canon, the cheap ones should be ok.
vbg
Dave
Quoting Cotty [EMAIL PROTECTED]:
I'm in the market for a new set of jeweller's-type screwdrivers. What's
the best set possible? I don't want yet another box of Chinese junk (if
you'll forgive the expression). Any recommendations?
, May 12, 2006 6:14 PM
To: pentax-discuss@pdml.net
Subject: Re: OT - Jeweller's Drivers Rec (was - RE: Aperture repair
on a
M lens?)
If they are for working on Japanese cameras you should use JIS
Crosspoint
drivers. I got this set and it works very well.
https://www.micro-tools.com/store
I've had a couple where it was the grease used to
lubricate the aperture lever itself.
Remove the mount from the lens and check, it's an
easy fix IF the mount screws are not frozen.
Use a screwdriver that fits them _perfectly_ or
they'll probably strip.
Don
-Original Message-
From:
Hi Lucas,
Have you checked that the aperture lever is not bent? That could be one little
devil to make problems...:-)
Also, it could be that lubrication from the focusing thread has migrated onto
the base of the aperture blades. This doesn't necessarily show through the
glass. That's what had
Op Thu, 11 May 2006 12:54:49 +0200 schreef Jostein [EMAIL PROTECTED]:
Have you checked that the aperture lever is not bent? That could be one
little
devil to make problems...:-)
Hmmm, it looks parallel to the protective flange. However, there _are_ two
parallel, diagonal scratches on the
M28/2.8 and M35/2.8 (and M35/2?) seem to be prone to sticky, slow
apertures. Needs a CLA.
Regards, Bob S.
On 5/11/06, Lucas Rijnders [EMAIL PROTECTED] wrote:
Op Thu, 11 May 2006 12:54:49 +0200 schreef Jostein [EMAIL PROTECTED]:
Have you checked that the aperture lever is not bent? That
Don Sanderson wrote:
it's an
easy fix IF the mount screws are not frozen.
... and if they are? Any sugesstions? I've got a M35/2.8 and M35/2 with
sticky apertures to repair ;-)
cheers
alkos
--
go out, burn some film!
24x36 at op pl
http://pad.go.pl
]
Sent: Thursday, May 11, 2006 6:28 PM
To: pentax-discuss@pdml.net
Subject: Re: Aperture repair on a M lens?
Don Sanderson wrote:
it's an
easy fix IF the mount screws are not frozen.
... and if they are? Any sugesstions? I've got a M35/2.8 and M35/2 with
sticky apertures to repair
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