Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-03-2018, 04:10 PM   #31
Site Supporter
Site Supporter
johnha's Avatar

Join Date: Apr 2012
Location: Lancashire, UK
Photos: Albums
Posts: 597
Old cameras come in kinds of conditions, I've only sent things off for CLA/Repair when they're broken or obviously in a bad way. Disassembling an old camera has risk associated with it (how the workshop deal with this risk is something to consider), personally I'm firmly of the belief not to medal with something that works.

12-03-2018, 08:22 PM   #32
Site Supporter
Site Supporter




Join Date: May 2018
Location: Bay Area, CA
Posts: 111
Original Poster
Well, camera arrived today, and anticipation quickly turned into disappointment. KEH sent me a 6x7 instead of a 67... Second time buying from them, second time unlucky. Will give them a call tomorrow.
12-04-2018, 09:43 AM   #33
Site Supporter
Site Supporter
rjm007's Avatar

Join Date: Oct 2015
Location: California
Photos: Gallery
Posts: 174
QuoteOriginally posted by Ediz7531 Quote
Well, camera arrived today, and anticipation quickly turned into disappointment. KEH sent me a 6x7 instead of a 67... Second time buying from them, second time unlucky. Will give them a call tomorrow.
Bummer - shame it wasn't the other way round....
12-12-2018, 08:33 PM   #34
Site Supporter
Site Supporter




Join Date: May 2018
Location: Bay Area, CA
Posts: 111
Original Poster
Got lucky and found one from Roberts Camera. It’s on its way to Eric as I type.

Question: it comes with a grid matte focusing screen with a center circle but without a fresnel or split. Presumably it’s either the BG-60 or BG-80. How can I tell the difference?


Last edited by Ediz7531; 12-12-2018 at 09:14 PM.
12-16-2018, 03:04 PM   #35
Pentaxian




Join Date: Jul 2009
Location: Seattle
Posts: 7,908
QuoteOriginally posted by Ediz7531 Quote
...
Question: it comes with a grid matte focusing screen with a center circle but without a fresnel or split. Presumably it’s either the BG-60 or BG-80. How can I tell the difference?
Congrats.

As you noted both the BG-60/80 have a grid but with no split or microprisms. The BG-60 is a standard screen and is compatible with all the 6x7 lenses. The BG-80 is a brighter screen and is especially suited for telephoto lenses. You can experience corner darkening with this matte and the following lenses: The 35, 45, 55, 75, 75 shift, 55-10mm zoom and 90-180mm zoom per the Pentax 67II Interchangable Focusing Screen operating manual.

The 67II interchangeable frame holding the matte has the model number on it. If the matte is taken out the the interchangeable frame to put into a 6x7/67, I don't know how you'd tell which one you have from looking at it. Perhaps if you can experience corner darkening with one of those noted lenses or not you'd know.

Last edited by tuco; 12-16-2018 at 03:21 PM.
12-17-2018, 09:34 PM   #36
Site Supporter
Site Supporter




Join Date: May 2018
Location: Bay Area, CA
Posts: 111
Original Poster
QuoteOriginally posted by tuco Quote
Congrats.

As you noted both the BG-60/80 have a grid but with no split or microprisms. The BG-60 is a standard screen and is compatible with all the 6x7 lenses. The BG-80 is a brighter screen and is especially suited for telephoto lenses. You can experience corner darkening with this matte and the following lenses: The 35, 45, 55, 75, 75 shift, 55-10mm zoom and 90-180mm zoom per the Pentax 67II Interchangable Focusing Screen operating manual.

The 67II interchangeable frame holding the matte has the model number on it. If the matte is taken out the the interchangeable frame to put into a 6x7/67, I don't know how you'd tell which one you have from looking at it. Perhaps if you can experience corner darkening with one of those noted lenses or not you'd know.
Thanks! I only briefly tested pointing and focusing with the 105mm lens on. I also bought the 75mm 4.5 lens. Will test using that lens when the camera comes back from Eric.
12-18-2018, 09:42 AM   #37
Site Supporter
Site Supporter
johnha's Avatar

Join Date: Apr 2012
Location: Lancashire, UK
Photos: Albums
Posts: 597
IIRC replacing the screen is a service centre job, if you have a preference for a different one it might be an idea to see what Eric might be able to do?
12-18-2018, 09:45 AM   #38
Site Supporter
Site Supporter




Join Date: May 2018
Location: Bay Area, CA
Posts: 111
Original Poster
QuoteOriginally posted by johnha Quote
IIRC replacing the screen is a service centre job, if you have a preference for a different one it might be an idea to see what Eric might be able to do?
Indeed, I asked Eric and he has spare standard focusing screens. I'll see if I can get used to the grid-matte.

12-18-2018, 09:46 AM   #39
Pentaxian




Join Date: Jul 2009
Location: Seattle
Posts: 7,908
QuoteOriginally posted by johnha Quote
IIRC replacing the screen is a service centre job, if you have a preference for a different one it might be an idea to see what Eric might be able to do?
I put a new matte in my 6x7. It's not hard. Just be careful not to drop any of the tiny shims and screws.
12-18-2018, 09:35 PM   #40
Pentaxian
Silent Street's Avatar

Join Date: Nov 2011
Location: Melbourne inner east.
Photos: Albums
Posts: 702
QuoteOriginally posted by johnha Quote
IIRC replacing the screen is a service centre job, if you have a preference for a different one it might be an idea to see what Eric might be able to do?

That's the correct advice (from Pentax) and conventional wisdom would strongly suggest following that path (service centre).
You can do it yourself, but you will need patience to establish correct and accurate focus at 3 points in the centre (near and far, using a magnifier/loupe) and make adjustments with the screws and shims. Each tiny shim is matched to a specific position and sometimes a change is required when focus cannot be accurately achieved.

I am hunting for a grid / microprism screen. I have never wavered from that type of exceptionally useful screen during my very long use of 35mm (Canon EOS 1N and 1V). The lack of quick viewfinder horizontal and vertical reference is a constant threat of ending up with off-level horizons, what with the spirit levels of my Manfrotto Mg head being in front, which I makes it mightily irksome to see them in certain situations (such as a recent shoot when prickly lakeside reeds just below the lens threatened to impale my fingers and face!).
12-19-2018, 08:30 AM   #41
Site Supporter
Site Supporter




Join Date: May 2018
Location: Bay Area, CA
Posts: 111
Original Poster
Actually on this note, is the standard focusing screen for the 67ii (BA-61?) brighter than the standard one for the 67?
12-19-2018, 09:39 AM   #42
Pentaxian




Join Date: Jul 2009
Location: Seattle
Posts: 7,908
On the 6x7/67, the focus screen is spring loaded in place. No adjustments are needed. The shims are to adjust the fit of the folding hood or Prism to the body so it isn't a loose fit.
12-19-2018, 11:58 AM - 1 Like   #43
Pentaxian




Join Date: Feb 2009
Location: Arizona
Posts: 1,036
QuoteOriginally posted by Ediz7531 Quote
Actually on this note, is the standard focusing screen for the 67ii (BA-61?) brighter than the standard one for the 67?
According to the 67II sales manual, all 4 screens, including the BA-61 were multi coated to improve finder brightness over the older models,
01-04-2019, 10:35 AM   #44
Site Supporter
Site Supporter




Join Date: May 2018
Location: Bay Area, CA
Posts: 111
Original Poster
So I got the camera back from Eric. I noticed that focusing at infinity is a little bit off with either of the two lenses I bought, so I hypothesized it's a problem with the screen.

Please pardon the stupid question, but does the screen being misaligned mean that whatever the screen shows as in focus won't necessarily be aligned with the image being in focus on the film plane?
01-04-2019, 10:48 AM - 1 Like   #45
Site Supporter
Site Supporter
Alex645's Avatar

Join Date: May 2015
Location: Kaneohe, HI
Photos: Albums
Posts: 2,373
QuoteOriginally posted by Ediz7531 Quote
does the screen being misaligned mean that whatever the screen shows as in focus won't necessarily be aligned with the image being in focus on the film plane?
IF the screen is misaligned then yes, but it could be the lenses as well. Before jumping to conclusions, I would run a test roll with both lenses at infinity and take good notes with shots using the lens on the infinity mark and at what your eye thru the finder appears to be infinity. Shoot with the apertures wide open. Also save a couple shots for a wall or focus chart test at 5 and 10 feet using the OVF for focusing.
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!
645d, 645z, camera, hasselblad, medium format, pentax, pentax 67 vs, reliability, sub-forum, system, vs, vs hasselblad 500cm
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K-5 vs MZ-S vs LX vs PZ-1p vs ist*D vs K10D vs K20D vs K-7 vs....... Steelski Pentax K-5 2 06-28-2017 04:59 PM
Pentax 67 vs Hasselblad EL Femto1969 Pentax Medium Format 11 06-07-2017 08:20 PM
Hasselblad V Mount Modified Pentax 67's? NickStancato Pentax Medium Format 4 02-27-2017 11:30 PM
K-series vs M-series image quality-wise? Piotrek K Pentax SLR Lens Discussion 20 10-31-2016 06:22 AM
Good price for a Hasselblad 500cm system? abieleck Non-Pentax Cameras: Canon, Nikon, etc. 16 03-19-2013 09:49 AM



All times are GMT -7. The time now is 01:20 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