Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-29-2014, 04:50 AM   #1
Forum Member




Join Date: Sep 2014
Posts: 69
Bronica ETR to PK?

Hi. My apologies if this isn't the correct forum, please move the thread if so.

In the '90s I enjoyed shooting with a Z-70. In the '00s it started collecting a bit of dust, and only recently did we get back to film, but at first in the form of 120, specifically Zenza Bronica ETRSi. I then got to properly scan my old 135 negatives and was surprised at the quality, which made me decide to give the Pentax some more use. And, what's more, get a K-30, so we could move the lenses around. So far, just perfect. The only thing we're missing is a UWA, but one will appear eventually (the widest we have is the FAJ 18-35).

I got thinking it would be nice if we could sometimes use the Bronica lenses (40, 50, 75, 150) on the Pentaxes. Not that we need to, or expect awesome results, but I can't believe it wouldn't be fun. I know there are adapters from ETR to Canon and Nikon, but I haven't been able to find anything for PK. There seem to be SQ adapters, but not ETR. Not even ETR to something plus something to PK (maybe Nikon, but Nikon to PK is lossy, iiiuc). Given that, does anyone have any ideas on how it could be done? I know there are some ETRSi users here, maybe one of you has thought of this before?

Thanks!

09-29-2014, 07:09 AM   #2
Site Supporter
Site Supporter
6BQ5's Avatar

Join Date: Jun 2013
Location: Nevada, USA
Photos: Albums
Posts: 3,323
I love to have one of these too!

I think the hard part is that the lens is electronically controlled. Any adapter would somehow have to keep the shutter open.
09-29-2014, 08:21 AM   #3
Loyal Site Supporter
Loyal Site Supporter
narual's Avatar

Join Date: Jun 2013
Location: South Bend (Notre Dame), Indiana
Posts: 1,974
You could get the nikon version. It will fit in the Pentax mount but lock or be terribly secure unless you do a little bit of filing on the adapter. The registration distance is close enough that it doesn't matter much.

there's an less involved version than this article shows around here somewhere, but I couldn't find it, sorry.
https://www.pentaxforums.com/forums/62-do-yourself/254770-mounting-nikkor-len...nt-camera.html
09-29-2014, 08:27 AM   #4
Site Supporter
Site Supporter
boriscleto's Avatar

Join Date: Dec 2009
Location: North Syracuse, NY
Photos: Gallery
Posts: 14,237
You could get the Nikon version and the Apaptist Multi-Mount too.

Adaptist - Home

09-29-2014, 10:18 AM   #5
Loyal Site Supporter
Loyal Site Supporter
narual's Avatar

Join Date: Jun 2013
Location: South Bend (Notre Dame), Indiana
Posts: 1,974
QuoteOriginally posted by boriscleto Quote
You could get the Nikon version and the Apaptist Multi-Mount too.

Adaptist - Home
Installing that on a WR camera makes it no longer WR. That's a pretty big downside for a modification that you would probably not want to do on a regular basis.
09-29-2014, 10:21 AM   #6
Site Supporter
Site Supporter
boriscleto's Avatar

Join Date: Dec 2009
Location: North Syracuse, NY
Photos: Gallery
Posts: 14,237
QuoteOriginally posted by narual Quote
Installing that on a WR camera makes it no longer WR. That's a pretty big downside for a modification that you would probably not want to do on a regular basis.
Use a K-30 with anything other than a WR or * lens and it isn't WR.
09-29-2014, 10:25 AM   #7
Loyal Site Supporter
Loyal Site Supporter
narual's Avatar

Join Date: Jun 2013
Location: South Bend (Notre Dame), Indiana
Posts: 1,974
QuoteOriginally posted by boriscleto Quote
Use a K-30 with anything other than a WR or * lens and it isn't WR.
What's your point? This goes beyond that, into "Use a K-30 with the Adaptist mount with a WR or * lens, and it STILL isn't WR"
09-29-2014, 10:36 AM   #8
Site Supporter
Site Supporter
boriscleto's Avatar

Join Date: Dec 2009
Location: North Syracuse, NY
Photos: Gallery
Posts: 14,237
QuoteOriginally posted by narual Quote
What's your point? This goes beyond that, into "Use a K-30 with the Adaptist mount with a WR or * lens, and it STILL isn't WR"
How many people who are going to be adapting old lenses have a need for WR? The K-30 didn't even have a WR kit lens. I own 81 lenses, and exactly 1 of them is WR. The OP could also use the non-WR version of the Multi-Mount with the Z-70.

09-29-2014, 12:33 PM   #9
Loyal Site Supporter
Loyal Site Supporter
narual's Avatar

Join Date: Jun 2013
Location: South Bend (Notre Dame), Indiana
Posts: 1,974
Hm. I use old lenses sometimes, and whoa.. I use WR lenses, too. Yay, 2 data points canceling each other out! That was a really useful exercise!

WR is a big selling point of pentax cameras.

Maybe it doesn't matter to you. Maybe it doesn't even matter to the OP. But it certainly matters to a fair number of people or they wouldn't have it in the first place... and telling them to switch out their lens mount without a bloody big warning that it's going to remove the most important part of their weather resistance strikes me as irresponsible.

It was one thing when they only made the mount for the non-WR bodies... no harm, there. But now they support the bodies with WR but don't bother putting an O ring on the product to replicate the stock one.
09-29-2014, 12:48 PM   #10
Veteran Member
LFLee's Avatar

Join Date: Aug 2009
Location: Western MA
Photos: Gallery | Albums
Posts: 2,286
QuoteOriginally posted by narual Quote
Hm. I use old lenses sometimes, and whoa.. I use WR lenses, too. Yay, 2 data points canceling each other out! That was a really useful exercise!

WR is a big selling point of pentax cameras.

Maybe it doesn't matter to you. Maybe it doesn't even matter to the OP. But it certainly matters to a fair number of people or they wouldn't have it in the first place... and telling them to switch out their lens mount without a bloody big warning that it's going to remove the most important part of their weather resistance strikes me as irresponsible.

It was one thing when they only made the mount for the non-WR bodies... no harm, there. But now they support the bodies with WR but don't bother putting an O ring on the product to replicate the stock one.
woah... I think it is understandable that it will no longer WR...
even PENTAX selling non-WR lens without explicitly telling them "it make WR body no longer WR".

09-29-2014, 12:54 PM   #11
Site Supporter
Site Supporter
boriscleto's Avatar

Join Date: Dec 2009
Location: North Syracuse, NY
Photos: Gallery
Posts: 14,237
What more explanation could you want?

Name:  Screen Shot 2014-09-29 at 3.53.18 PM.png
Views: 414
Size:  91.7 KB
09-29-2014, 03:06 PM   #12
Site Supporter
Site Supporter
6BQ5's Avatar

Join Date: Jun 2013
Location: Nevada, USA
Photos: Albums
Posts: 3,323
Good. Now that we got the WR issue out of the way how about that ETRS -> K mount adapter again?
10-02-2014, 08:05 AM   #13
Forum Member




Join Date: Sep 2014
Posts: 69
Original Poster
Hi. Thank you all for your input.
Sorry for not having come here earlier, but I was counting on getting an email notification and must have missed it.
I had seen some reference to something like the MultiMount some time ago, but the website wasn't anywhere as professional so I kind of moved on (possibly a mistake). It does look interesting, but there's things I'm not sure of:
- is the change of mount reversible without too much hassle?
- do real PK lenses behave as well in the MM, the WR issue aside?

After all, we'd like to use the Bronica lenses for fun (and because they're primes), not because we can't get PK ones.

One (just one, nothing more) of the reasons we got a K-30 instead of one of the smaller models was the weather sealing, tho as prophesied we actually have no WR lenses. My impression was that at least part of the body, if not the hole behind the lens, would be more protected against accidental sprinkling or moisture. Or maybe it's just marketing hype, but it does sound comfy.

I'll concur that calling the version-for-WR-bodies the WR-version is a bit misleading, unless you read carefully you'd think it preserves the WR character of the body. I don't understand whether they could add an O-ring to the MM so as to keep it WR and chose not to, or whether that's technically challenging or impossible.

The 1mm ring approach nanual linked to seems interesting and even simple. I'm not the handicrafty kind of guy, unfortunately, but I'll give it a more thorough look.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
adapter, adapters, bronica, bronica etr, bronica etrsi, etrsi, k-mount, lenses, move, nikon, pentax lens, pk, pk mount, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bronica SQ to K-Mount??? Aperturae Pentax SLR Lens Discussion 2 04-16-2014 07:59 AM
Bronica lenses converted to pentax 645?? Khaledgawdat Pentax Medium Format 5 09-26-2011 12:58 PM
How to REMOVE a Pentax 60-300mm PK-A & R-PK Macro Zoom From my K-7 arimage Troubleshooting and Beginner Help 17 02-24-2011 10:27 PM



All times are GMT -7. The time now is 03:47 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top