Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-23-2013, 02:42 PM   #31
Otis Memorial Pentaxian
RobG's Avatar

Join Date: Dec 2009
Location: Canberra
Photos: Gallery | Albums
Posts: 8,829
QuoteOriginally posted by kh1234567890 Quote
That was my exact problem - focusing with a 300mm f5.6 mirror and the stock screen was very difficult and with my mirror lens the viewfinder phase detect focus assist did not work. I tried a viewfinder magnifier, this was a bit of an improvement but was difficult to use when wearing glasses. Changing to the Canon EE-S screen solved the problem completely.
OK, thanks. Going back to my previous question - do you know if the focussing screen I linked above is a modified Canon S screen?

10-23-2013, 04:07 PM   #32
Veteran Member
kh1234567890's Avatar

Join Date: Sep 2010
Location: Manchester, UK
Photos: Gallery
Posts: 2,653
QuoteOriginally posted by RobG Quote
OK, thanks. Going back to my previous question - do you know if the focussing screen I linked above is a modified Canon S screen?
No, the focusingscreen.com have the cut down EE-S screen is listed as 'S' type.
10-23-2013, 06:01 PM   #33
Otis Memorial Pentaxian
RobG's Avatar

Join Date: Dec 2009
Location: Canberra
Photos: Gallery | Albums
Posts: 8,829
QuoteOriginally posted by kh1234567890 Quote
No, the focusingscreen.com have the cut down EE-S screen is listed as 'S' type.
OK, thanks. It would be great to improve the ability to focus manually!
10-23-2013, 09:07 PM   #34
Veteran Member




Join Date: Jan 2010
Location: Southern England
Posts: 623
Beware of Focus Indicator!

I know several posters have referred to use of the focus indicator to confirm correct focus, but I would recommend you don't go this route. I have found (on my K-m) that it's completely unreliable: in fact, with my Tak (Bayonet) 135, if you use the focus indicator, you end up front-focusing by about 10% of the subject distance. Other lenses all behave differently: 28mm lenses all give a very sloppy indication, which is obviously of no use; best results are with 50mm lenses, for some reason.

Since catch-in focus will make use of the same mechanism, I would rule this out too, or maybe confine it to use with 50mm lenses.

10-24-2013, 01:47 AM   #35
Veteran Member
kh1234567890's Avatar

Join Date: Sep 2010
Location: Manchester, UK
Photos: Gallery
Posts: 2,653
QuoteOriginally posted by RobG Quote
OK, thanks. It would be great to improve the ability to focus manually!
The drawback of the EE-S screen is that it is darker than the stock screen - I find that a +2/3 EV exposure compensation is needed. In practice one gets quickly used to that. It does really make a difference with all manual focus lenses, not just the fast ones. It is not cheap but it comes with a nice installation kit including shims. A worthwhile investment as it makes all those great cheap eBay bargain old lenses useable

Anything else just leads to endless frustration - I've been there, done it.
11-13-2013, 01:50 PM   #36
Veteran Member
p38arover's Avatar

Join Date: Mar 2012
Location: Western Sydney, Australia
Photos: Gallery | Albums
Posts: 3,084
Original Poster
I forgot to update this. I bought the full selection from CR Kennedy (Pentax Australia) but haven't yet tried them. Cost about $30 including post. I'll confirm price later when my computer is on.
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, dslr, focus, k-7, photography, screen
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
What size is the focusing screen shim? striker_ Pentax K-5 & K-5 II 9 09-15-2013 03:46 PM
Focus indicator on K-20 with Katzeye focussing screen ivanvernon Troubleshooting and Beginner Help 11 02-13-2013 02:51 PM
Does anyone have a K-5 in the detroit area Hey Elwood Pentax K-5 & K-5 II 2 06-07-2012 05:33 AM
Does my 55-300 have a focussing issue ? [img] photoleet Pentax SLR Lens Discussion 7 11-17-2011 12:23 AM
Does the K-x have a tendency to underexpose? jct us101 Pentax DSLR Discussion 17 06-22-2010 05:05 PM



All times are GMT -7. The time now is 02:54 PM. | 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