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Showing results 1 to 11 of 11 Search: Liked Posts
Forum: Troubleshooting and Beginner Help 12-02-2019, 04:21 AM  
Pentax K bayonet mount with contacts
Posted By markkuk
Replies: 6
Views: 1,218
It looks like a Practica B-mount (a.k.a PB-mount).
Forum: Pentax K-3 & K-3 II 08-20-2017, 02:59 AM  
K3 ii: Bracketing by changing only shutter speed
Posted By markkuk
Replies: 6
Views: 2,292
Go to Rec mode menu (camera icon) page 4, choose E-Dial Programming, choose M mode (on page 2), set Green Button function to Tv Shift. As an undocumented side effect of this setting bracketing in M mode changes only shutter speed. See pages 22 and 78 of the manual.
Forum: Digital Processing, Software, and Printing 01-24-2017, 03:31 AM  
Linux OS For Photgraphic Editing And Printing
Posted By markkuk
Replies: 88
Views: 9,458
There's good support for laser printers and consumer inkjets. However, "little or no support" applies well to high-end photo inkjets.

If you must use those programs, then you need Windows. If you just need the functionality provided by those programs, then you should look for replacements that run natively on Linux.
Forum: Pentax K-1 & K-1 II 03-02-2016, 03:48 AM  
Registration distance of full frame Pentax
Posted By markkuk
Replies: 21
Views: 3,670
Pentax doesn't have any separate "crop mount". K-1 uses the same K-bayonet mount as Pentax APS-C DSLRs and film SLRs since 1975. The register distance is 45.46 mm.
Forum: Mini-Challenges, Games, and Photo Stories 11-21-2015, 06:15 AM  
Just Black and White-ur B/W Monochrome photos here
Posted By markkuk
Replies: 30,375
Views: 2,100,951
First snow on my backyard
Forum: Digital Processing, Software, and Printing 10-26-2014, 03:26 AM  
EXIF editor?
Posted By markkuk
Replies: 7
Views: 1,617
There's an option to shift the date/time values by a specific amount, see: Date/Time Shift Feature and ExifTool Date/Time Shift Module
Forum: Pentax SLR Lens Discussion 08-28-2014, 04:52 AM  
Change of angle of view film vs APS-C digital
Posted By markkuk
Replies: 12
Views: 1,693
First you need to know which of the several possible fisheye projections is used by your lens. Often the projection is mentioned in the technical specs of the lens. Then you can just do the math using one of the equations on this page: Field of View Calculator - Rectilinear and Fisheye lenses - Bob Atkins Photography
Forum: Troubleshooting and Beginner Help 05-27-2014, 02:53 PM  
Aperture changes during exposure bracketing
Posted By markkuk
Replies: 6
Views: 1,225
In my K20D and K-3 it's possible to get bracketing with constant aperture in M mode by setting the green button function in M mode to "Tv shift". It's undocumented but it works. Check if the K-30 has a similar customization setting.
Forum: Pentax SLR Lens Discussion 03-31-2014, 05:56 AM  
Pentax Nifty 50 MTF charts
Posted By markkuk
Replies: 18
Views: 6,914
Forum: Pentax K-3 & K-3 II 11-25-2013, 10:00 AM  
K-3- The Reviews, So Far
Posted By markkuk
Replies: 94
Views: 22,173
Forum: Visitors' Center 11-04-2013, 04:46 AM  
Lens compatibility on K-50
Posted By markkuk
Replies: 7
Views: 8,449
Olympus made some M42 mount lenses for their short-lived FTL body. Due to an extra pin these lenses may not work correctly with Pentax M42 bodies or M42-K-mount adapters
Olympus FTL - Camerapedia
42mm screw lenses - Camerapedia
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