Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-08-2013, 05:52 AM   #1
Pentaxian




Join Date: Apr 2010
Location: Wiltshire/Hampshire
Photos: Albums
Posts: 1,752
Pentax 67 metered prism

The 6x7/67 (note not the 67ii) prism seems to deal well with average scenes, taken seconds apart:

Here's the photo from the 67, metered spot on with the prism:




And the same settings on the NEX-5N:



Just for reference!


Last edited by rob1234; 10-08-2013 at 08:58 AM.
10-08-2013, 07:28 AM   #2
Senior Member
LaHo's Avatar

Join Date: Mar 2007
Location: Denmark
Photos: Albums
Posts: 250
The 6x7 image may be deemed a bit on the warm/brown side and somewhat more contrasty than the Nex image, which is definitely on the cold/bluish side. But in comparison the analogue 6x7 image results in a much more pleasing image. I think.
10-08-2013, 07:41 AM   #3
Pentaxian




Join Date: Apr 2010
Location: Wiltshire/Hampshire
Photos: Albums
Posts: 1,752
Original Poster
Agreed, but that is all down to post-processing (or lack of it) - I'm sure I could make the image's colour pretty similar if I tried.

The point I should have mentioned is that the NEX-5N reckoned this shot was 1.5 stops over-exposed, i.e. had I used the NEX's recommended exposure, the transparency would have been pretty sub-obtimal.
10-08-2013, 08:32 AM   #4
Site Supporter
Site Supporter
gofour3's Avatar

Join Date: Oct 2008
Location: Vancouver, Canada
Posts: 5,382
Yep I find the 67ii AE prism using the matrix meter very accurate. The first shot looks very good.

Phil.

10-08-2013, 08:47 AM   #5
Pentaxian




Join Date: Jul 2009
Location: Seattle
Posts: 7,145
I'd note the Sunny 16 rule for this shot, which you adjust by opening 1 stop for this time of year and your latitude, is f11, 1/125. Only 1/2 stop difference. Who needs a meter for a sunny day with the sun at your back!
10-08-2013, 09:02 AM   #6
Pentaxian




Join Date: Apr 2010
Location: Wiltshire/Hampshire
Photos: Albums
Posts: 1,752
Original Poster
QuoteOriginally posted by tuco Quote
I'd note the Sunny 16 rule for this shot, which you adjust by opening 1 stop for this time of year and your latitude, is f11, 1/125. Only 1/2 stop difference. Who needs a meter for a sunny day with the sun at your back!
True! Also, I find metering off my palm and placing that at Zone VI works a charm too.


QuoteOriginally posted by gofour3 Quote
Yep I find the 67ii AE prism using the matrix meter very accurate. The first shot looks very good.

Phil.
This was the averaging 6x7/67 meter, note the nice modern 67ii meter.
10-08-2013, 09:39 AM   #7
Pentaxian




Join Date: Jul 2009
Location: Seattle
Posts: 7,145
QuoteOriginally posted by rob1234 Quote
True! Also, I find metering off my palm and placing that at Zone VI works a charm too.
Both the last two shots I just posted in the Medium Format and the Post Your BW Film Shots were all taken without using a light meter. The developing technique used and the latitude of the film makes using the Sunny 16 rule and mentally adjusting as needed a snap.

It seems a person's prior digital experience, since it needs way more precise exposure, gets us dependent on a camera's meter and forget with negative film there is a lot more latitude with the exposure process. But transparency film is a different matter of course.
10-09-2013, 02:03 AM   #8
Veteran Member
Silent Street's Avatar

Join Date: Nov 2011
Location: Geelong & Richmond, Vic AUS
Posts: 553
To my eyes there is nothing particularly contrasty or marginal, in terms of contrast, in the image presented. A multi-spot metered reading might yield a result slightly finer in tonal distribution than the 67 / 6x7 meter; generally multispot/averaging metering is my chosen path now as I do not think the rudimentary average-weighted TTL meter handles contrasty subjects particularly well, especially light and dark toned.

10-09-2013, 12:27 PM   #9
Pentaxian




Join Date: Feb 2009
Location: Arizona
Posts: 916
The TTL prism meter can be faked out, so it is best to use a gray card if one is to use it successfully. Using only sunny 16 as your guide for metering when using slide film can be a nightmare, especially when using filters that do not pass the same amount of light (Hoya Polarizer VS a multicoated Polarizer).
10-09-2013, 08:58 PM   #10
Veteran Member
Silent Street's Avatar

Join Date: Nov 2011
Location: Geelong & Richmond, Vic AUS
Posts: 553
QuoteOriginally posted by desertscape Quote
The TTL prism meter can be faked out, so it is best to use a gray card if one is to use it successfully. Using only sunny 16 as your guide for metering when using slide film can be a nightmare, especially when using filters that do not pass the same amount of light (Hoya Polarizer VS a multicoated Polarizer).
That's interesting. Never heard of that before.
10-11-2013, 11:11 AM   #11
Pentaxian




Join Date: Feb 2009
Location: Arizona
Posts: 916
My B+W multicoated Pol is a stop brighter than my Hoya Pol. If you forget this difference while using sunny 16, you're toast.
10-11-2013, 11:26 PM   #12
Veteran Member
Silent Street's Avatar

Join Date: Nov 2011
Location: Geelong & Richmond, Vic AUS
Posts: 553
Most educational.
I need to fish around now and compare my Kenko Zéta C-POL with a B+W Kasemann C-POL — both of these have significant layers of multicoating.
I agree though it's not a good idea to use "rules of thumb" aka "Sunny 16" with polarisers (or other filters such as red, yellow, green and blue) without experimenting, taking notes and becoming proficient with e.g. a spot meter. I would never, ever hand over exposure control to the 67's rudimentary TTL meter: early experience proved that doesn't get it right at all.
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!
camera, flickr, medium format, prism
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wanted - Acquired: 67ii prism (metered or non-metered) Cooper Sold Items 0 07-30-2012 10:33 PM
Pentax 67 Prism Diopter mattsawyer77 Pentax Medium Format 5 04-19-2012 02:49 PM
6X7 Metered Prism ugadog Pentax Medium Format 7 09-16-2011 11:36 AM
Pentax 6x7 TTL Prism and non metered. carsonbm Pentax Medium Format 9 04-26-2011 03:04 PM



All times are GMT -7. The time now is 07:44 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