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Forum: Pentax K-3 & K-3 II 05-31-2015, 02:59 AM

Implementing automatic artifact removal from PS shot in dcraw
Posted By tomtor

Replies: 12
Views: 2,383

I finished an initial version:

http://www.v7f.eu/public/pentax/dcrawps.c

Example usage:

dcraw -T -4 IMGP0121.DNG

IMGP0121.DNG was posted with other files in this thread:

https://www.pentaxforums.com/forums/172-pentax-k-3/296122-k3ii-pixel-shift-first-test-5.html

By default it wil detect artifacts by unexpected changes in the green channel.
Artifacts are repaired by the bayer interpolation on the first image.

-G sets the threshold, by default 10%. -G 1000 will disable, -G 20 sets the threshold to 20

By specifying -v it will highlight the spot in purple. This can also be usefull if you want to repair manually.

The example file has a moving tick :lol:

-- edit --
And a compiled windows version:

http://www.v7f.eu/public/pentax/dcrawps32.exe

Forum: Pentax Full Frame 07-04-2015, 01:33 PM

a cheap ff is what pentax should do
Posted By tomtor

Replies: 218
Views: 18,464

Yes, you can send pictures to your phone with the Pentax wifi memory card. This will also work with the K-r. The eye-fi wifi card is a cheaper option, but the Pentax card offers remote control for the k-3 and newer cameras.

Forum: Pentax K-3 & K-3 II 06-17-2015, 03:13 AM

K-3 II refusing to shut down?
Posted By tomtor

Replies: 148
Views: 18,679

Got my camera slightly less than 2 hours ago and played a little with it. Battery is on the charger now.

First and only issue till now:

My wife looked in the shipping box and shouted: "Hey, they sent you the wrong camera, it's a Ricoh!?" :lol:

Forum: Lens Clubs 05-14-2015, 01:41 PM

The M Club!
Posted By tomtor

Replies: 9,626
Views: 1,447,294

This combo really does great. All at f5.6 (f9.5)

Terschelling by tomtor, on Flickr

Terschelling by tomtor, on Flickr

Buoys by tomtor, on Flickr

Grenada Gold by tomtor, on Flickr

Forum: Pentax K-3 & K-3 II 05-29-2015, 04:32 AM

K3II: Pixel Shift First Test
Posted By tomtor

Replies: 168
Views: 31,315

Well, that's excellent. So everybody can be happy.

I created a separate thread for discussing the dcraw adaption:

https://www.pentaxforums.com/forums/172-pentax-k-3/296497-implementing-automa...hot-dcraw.html

Forum: Monthly Photo Contests 04-03-2015, 12:36 AM

Upside down?
Posted By tomtor

Replies: 22
Views: 2,492

Excellent!

Forum: Flashes, Lighting, and Studio 03-14-2009, 08:11 AM

Large test of Pentax 540 and Metz 58
Posted By tomtor

Replies: 4
Views: 4,702

I recently got the Pentax 540 flash and I have owned the Metz 58 for over a year.

I decided to spend this day (perhaps waist this day according to some) testing all kinds of combinations with these flashes:
- off and on camera
- with and without contrast control
- with the popup as master/controller
- with a big flash as master/controller
- ...

If you're interested:

http://www.xs4all.nl/~tomv/pentax/PentaxFlash.pdf

Feedback and suggestions for other tests are welcome.

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