Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
08-12-2010, 09:00 AM   #1
Veteran Member

Join Date: Oct 2008
Location: Sweden
Posts: 359
Katzeye sans Optibrite

After reading several threads on this forum I have decided to get a Katzeye.
It seems like optibrite is recommended, but how good is the Katzeye without optibrite? As bright as the original screen in the K10d/K20d or dimmer/brighter?
Is the split/microprism enough to make a significant improvement from the original screen. My slowest lens is F4.

Kind regards

08-22-2010, 11:14 AM   #2
Site Supporter
Site Supporter
GregK8's Avatar

Join Date: May 2008
Location: Western New York
Photos: Gallery | Albums
Posts: 614
I just have a plain old KatzEye without optibrite and without any extra markings and I like it just fine. There are times when you get the split screen darkened, but it usually only happens in pretty low light and in those circumstances it seems that the AF system can still provide focus confirmation.
08-22-2010, 09:00 PM   #3
Veteran Member
Steinback's Avatar

Join Date: Jan 2008
Location: GTA, ON, Canada
Photos: Gallery | Albums
Posts: 1,673
I've got the plain Katzeye and don't have any complaints. Generally I'm shooting with primes that are f/2.8 or faster, though it still works fine with the kit lens and with my f/6.7 super telephoto in reasonable light. My recollection is that the aftermarket screen is brighter than the stock screen with fast lenses and a little dimmer with slow ones, but it has been years since I changed over.
08-22-2010, 10:22 PM   #4
Veteran Member
troyz's Avatar

Join Date: May 2008
Posts: 389
QuoteOriginally posted by Recercare Quote
Is the split/microprism enough to make a significant improvement from the original screen. My slowest lens is F4.
If you primarily use fast lenses, you probably DON'T want the optibrite treatment. Optibrite produces a brighter image, but at the cost of decreased focus accuracy (specifically, increased apparent depth of field) for the matte portion of the screen.

See ("Optibrite or not") at OptiBrite Brightness Enhancement - KatzEye Optics .

The split prisms/microprisms are much easier and faster to use than the focus confirm light/beep and the standard screen -- but only more accurate if your focus screen is properly calibrated. See various threads here about calibrating the focus screen shim.

08-22-2010, 10:54 PM   #5
Veteran Member

Join Date: Mar 2008
Location: Israel
Photos: Gallery | Albums
Posts: 932
I've an optibrite KE in my K10D. Yet I opted for KE screen w/o optibrite for my K-7. It took me time and effort to have it properly aligned on K-7 (got lucky with K10D) and I am happy camper now. You might want to consider buying the magnifying eye for your camera - it really helps.
08-22-2010, 11:47 PM   #6
Veteran Member
philbaum's Avatar

Join Date: Oct 2007
Location: Port Townsend, Washington State, USA
Posts: 3,659
I have an optibrite KE, and just tonight appreciated its brightness in using a SMC 400mm f5.6 lens. Different courses, different horse :-)
08-24-2010, 07:31 AM   #7
Veteran Member

Join Date: Oct 2008
Location: Sweden
Posts: 359
Original Poster
Thanks guys!

I think I will try without Optibrite.

Kind regards


  • 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!
katzeye, optibrite, screen, tripod
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: KatzEye for K10/K20 w/optibrite + original battery (Worldwide) jv.pentax Sold Items 3 08-12-2010 08:44 AM
Shooting Fireworks Sans Tripod jaieger Photographic Technique 11 08-01-2010 05:55 PM
For Sale - Sold: KatzEye Split Prism Focus Screen with OptiBrite for *ist D, DS, K10D, K20D eirual Sold Items 7 01-19-2010 08:34 AM
Any conclusions re: K10D + Katz w/ Optibrite? d.bradley Pentax DSLR Discussion 17 11-29-2007 10:28 PM
KatzEye Plus 100% ... to OptiBrite or not to OptiBrite, that is the question... ++ m8o Pentax Camera and Field Accessories 1 11-19-2007 11:55 PM

All times are GMT -7. The time now is 08:15 AM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]