| View previous topic :: View next topic |
| Author |
Message |
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
 Posted: Thu Apr 14, 2011 4:59 pm Post subject: m42 to 4/3 adapter problem |
 |
|
Volunteer wrote:
I got a Pentax 135mm lens with m42 mount. When I try to screw the m42 to 4/3 adapter on it, it doesn't screw all the way and the lens doesn't focus to infinity. I read that that's common because it's a wrong kind of adapter, that there are flanged and non flanged. But I can't tell the difference between the two. Can anyone show me the photo of a different adapters? |
|
| Back to top |
|
 |
Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
|
| Posted: Thu Apr 14, 2011 5:01 pm Post subject: |
|
|
Attila wrote:
I rather believe you got a lens with T mount which is looks like M42 but screw type is different.
_________________
-------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
|
|
| Back to top |
|
|
calvin83
Joined: 12 Apr 2009
Posts: 7583
Location: Hong Kong
|
| Posted: Thu Apr 14, 2011 5:04 pm Post subject: |
|
|
calvin83 wrote:
| Attila wrote: |
| I rather believe you got a lens with T mount which is looks like M42 but screw type is different. |
+1. The T2 mount has finner threads with same diameter as M42 mount.
_________________
The best lens is the one you have with you.
https://lensfever.com/
https://www.instagram.com/_lens_fever/ |
|
| Back to top |
|
|
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
| Posted: Thu Apr 14, 2011 5:06 pm Post subject: |
|
|
Volunteer wrote:
Can you please identify it? 
 |
|
| Back to top |
|
|
calvin83
Joined: 12 Apr 2009
Posts: 7583
Location: Hong Kong
|
| Posted: Thu Apr 14, 2011 5:10 pm Post subject: |
|
|
calvin83 wrote:
| Volunteer wrote: |
Can you please identify it?
|
It should be a pentacon electric 135 2.8 M42 lens..... Is there any damage to the threads?
_________________
The best lens is the one you have with you.
https://lensfever.com/
https://www.instagram.com/_lens_fever/ |
|
| Back to top |
|
|
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
| Posted: Thu Apr 14, 2011 5:12 pm Post subject: |
|
|
Volunteer wrote:
Nope, they look quite good. The same thing happened to me with the Super Takumar 50mm, also m42. It screws to a half, and just stops. Helios and Cosina cause no problems. |
|
| Back to top |
|
|
calvin83
Joined: 12 Apr 2009
Posts: 7583
Location: Hong Kong
|
| Posted: Thu Apr 14, 2011 5:15 pm Post subject: |
|
|
calvin83 wrote:
| Volunteer wrote: |
| Nope, they look quite good. The same thing happened to me with the Super Takumar 50mm, also m42. It screws to a half, and just stops. Helios and Cosina cause no problems. |
It is very difficult to get a bad copy of a M42 adaptor. I think you can return it to the seller.
_________________
The best lens is the one you have with you.
https://lensfever.com/
https://www.instagram.com/_lens_fever/ |
|
| Back to top |
|
|
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
| Posted: Thu Apr 14, 2011 5:17 pm Post subject: |
|
|
Volunteer wrote:
Bah, I'll keep it for the Cosina I use. I'd just like to get a good adapter so this doesn't happen again. If it's really the cause of the problem. |
|
| Back to top |
|
|
calvin83
Joined: 12 Apr 2009
Posts: 7583
Location: Hong Kong
|
| Posted: Thu Apr 14, 2011 5:19 pm Post subject: |
|
|
calvin83 wrote:
| Volunteer wrote: |
| Bah, I'll keep it for the Cosina I use. I'd just like to get a good adapter so this doesn't happen again. If it's really the cause of the problem. |
Any M42 should works well with most M42 lens...... Do you think the aperture pin on your lens interfer with the adaptor?
_________________
The best lens is the one you have with you.
https://lensfever.com/
https://www.instagram.com/_lens_fever/ |
|
| Back to top |
|
|
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
| Posted: Thu Apr 14, 2011 5:22 pm Post subject: |
|
|
Volunteer wrote:
I don't believe so. If the pin was stuck, the screw would stop immidiately, but it doesn't - I can turn it around a little more. It's just like there's something wrong with the screw. I'm just sorry that it happens with some lenses, and not with the others so I can't be positive where's the problem. I'll have to meet someone who's got an m42 adapter so they try mounting the lens... |
|
| Back to top |
|
|
calvin83
Joined: 12 Apr 2009
Posts: 7583
Location: Hong Kong
|
| Posted: Thu Apr 14, 2011 5:27 pm Post subject: |
|
|
calvin83 wrote:
| Volunteer wrote: |
| I don't believe so. If the pin was stuck, the screw would stop immidiately, but it doesn't - I can turn it around a little more. It's just like there's something wrong with the screw. I'm just sorry that it happens with some lenses, and not with the others so I can't be positive where's the problem. I'll have to meet someone who's got an m42 adapter so they try mounting the lens... |
I think this will be the best way to see if there is quality issus on your adaptor if you don't have any M42 camera.
_________________
The best lens is the one you have with you.
https://lensfever.com/
https://www.instagram.com/_lens_fever/ |
|
| Back to top |
|
|
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
| Posted: Thu Apr 14, 2011 5:33 pm Post subject: |
|
|
Volunteer wrote:
| calvin83 wrote: |
I think this will be the best way to see if there is quality issus on your adaptor if you don't have any M42 camera. |
I'm really an idiot  I tried the lens on my Zenit and it screws in just fine...So it's definitely an adapter But I don't know what's the solution - would the same adapter fit or would it be the same.  |
|
| Back to top |
|
|
calvin83
Joined: 12 Apr 2009
Posts: 7583
Location: Hong Kong
|
| Posted: Thu Apr 14, 2011 5:53 pm Post subject: |
|
|
calvin83 wrote:
| Volunteer wrote: |
| calvin83 wrote: |
I think this will be the best way to see if there is quality issus on your adaptor if you don't have any M42 camera. |
I'm really an idiot I tried the lens on my Zenit and it screws in just fine...So it's definitely an adapter But I don't know what's the solution - would the same adapter fit or would it be the same. |
I think you get a bad copy of adaptor. Buy another one and try it again.
_________________
The best lens is the one you have with you.
https://lensfever.com/
https://www.instagram.com/_lens_fever/ |
|
| Back to top |
|
|
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
| Posted: Thu Apr 14, 2011 7:35 pm Post subject: |
|
|
Volunteer wrote:
Can anyone show me what does an m42->4/3 adapter look with and withot the flange?
I know what does flange literally mean, but can't figure out what part of adapter is that. A picture would help a lot. |
|
| Back to top |
|
|
Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
|
| Posted: Thu Apr 14, 2011 7:44 pm Post subject: |
|
|
Attila wrote:
Flange looks like this what you can see on other type of adapter.
_________________
-------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
|
|
| Back to top |
|
|
std
Joined: 09 Feb 2010
Posts: 1826
Location: Bulgaria
|
| Posted: Fri Apr 15, 2011 7:11 am Post subject: |
|
|
std wrote:
If the flange is the problem you can always widen it a bit: 1-2 mm more will do.
You just need a drill and small mounted grinding stone (don't know if i say it properly in English).Looks like this :
This is how the adapter looks after the modification:
_________________
Stefan
My lens list:
SLR MD: Rokkor 1,7/50 Exakta: Kilfitt-Makro-Kilar E 3.5/4cm; CZJ 2/50 Pancolar;M42: CZJ 2.8/50 Tessar; Mir-1B 2.8/37; Jupiter-9 2/85 T-mount: Tamron 5.9/200; Tamron 6.9/300; Tamron 7.5/400 C-mount: Cosmicar 1.8/50 Y/S: Sun 3.5/38-90, Sun 4/70-210 RF Contax RF: Jupiter-8 2/50; Contax G:CZ 2,8/21 Biogon T; CZ 2,8/28 Biogon T; CZ 2/35 Planar T; CZ 2/45 Planar T; CZ 2,8/90 Sonnar T |
|
| Back to top |
|
|
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
| Posted: Fri Apr 15, 2011 7:31 am Post subject: |
|
|
Volunteer wrote:
It's not, my adapter doesn't have it. I somehow don't think I'll be able to use this lens, even if I do order another adapter. :/ |
|
| Back to top |
|
|
SVP
Joined: 15 Jan 2009
Posts: 665
Location: Greece
Expire: 2017-12-17
|
| Posted: Fri Apr 15, 2011 9:26 am Post subject: |
|
|
SVP wrote:
I do have a similar issue with a factory-made Rollei - M42 adapter:
It works ok with the vast majority of my M42 lenses but refuses to screw-in 100% on one particular telephoto. When I try to mount other M42 adapters on the "problematic" lens (like Miranda or Konica AR, both factory-made too) I have no issue at all. Isn't this strange or what? |
|
| Back to top |
|
|
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
| Posted: Fri Apr 15, 2011 9:39 am Post subject: |
|
|
Volunteer wrote:
That's encouraging, thank you Well, I'll buy a new adapter...The problem is that I'm impatient and it'll travel a month for sure from Hong Kong. |
|
| Back to top |
|
|
Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
|
| Posted: Fri Apr 15, 2011 10:43 am Post subject: |
|
|
Attila wrote:
| Volunteer wrote: |
| That's encouraging, thank you Well, I'll buy a new adapter...The problem is that I'm impatient and it'll travel a month for sure from Hong Kong. |
Typical shipping from HK looks like this:
Seller in HK sit on for a week to collect enough orders.
Shipping is fast 3-5 days.
Customs sit on it 3 days.
So hopefully it will be over there less
_________________
-------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
|
|
| Back to top |
|
|
Volunteer
Joined: 16 Mar 2011
Posts: 74
Location: Zagreb, Croatia
|
| Posted: Fri Apr 15, 2011 10:51 am Post subject: |
|
|
Volunteer wrote:
I know, I have ordered a few things from there. The fastest one to arrive was here in 2 weeks, the slowest a month and a half. |
|
| Back to top |
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Search
Memberlist
Register
Profile
Log in to check your private messages
Log in
