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Forum: Monthly Photo Contests 07-01-2015, 10:50 PM  
Down the stairs
Posted By mantas
Replies: 8
Views: 799
nice reflections on top of image
Forum: Pentax SLR Lens Discussion 05-05-2015, 12:52 PM  
very wide angle lens choices?
Posted By mantas
Replies: 11
Views: 2,321
Again, thank you all for your thoughts and comments. Just to illustrate how big are the distortions when stitching an image i add a picture. at left you ll see original image and on right warped image. also far right image from this cracked lens and in a middle 100 proc crop. i still can live with a scratch - but i need to take much more shots in order to cover the scratch. I have never heard of an option to fill a scratch with ink / black paint, ill have to investigate more sins its quite a scary proposal :))
so i gather sigma 10- 16 is regarded as good by some, and samyang 10mm, also pentax da 10-17. Having a 21, 24 mm lens would probably be too much for me regarding more time shooting / stiching that would require.
and here are some examples of stiched panoramas using my broken samyang 8mm - https://goo.gl/uxhEtc https://goo.gl/uGOhVI https://goo.gl/UpFkeF https://goo.gl/vykwk0
Forum: Pentax SLR Lens Discussion 04-30-2015, 10:12 AM  
very wide angle lens choices?
Posted By mantas
Replies: 11
Views: 2,321
Thank you all for your responses and thoughts.
Regarding sharpness.. i know that ultra wide angles are not as sharp as others, and that race for sharpness is a bit over valued these days. Yet i want as much as i can get. When i stitch my images to get final panorama lots of warping and stretching takes place so i further loose details. therefore i what to start with something that is as sharp as i can have. regarding rectilinear vs fish eye, i sopose rectilinear is better for me, but its not a big difference.
And the scratch is very big and visible in images. only if its pointed to a sky or snow its invisible. but its visible in 9 out of 10 images. its like 1 cm big :(
Forum: Pentax SLR Lens Discussion 04-30-2015, 04:17 AM  
very wide angle lens choices?
Posted By mantas
Replies: 11
Views: 2,321
i have k3 and samyang 8mm, i have screeched front glass of the lens and iam considering an alternative to samyang. The lens is used for 360*180 spherical panorama shooting. Although iam not working with panoramas professionally and would prefer cheaper solutions, i would like to evaluate all options. so the questions are:
1. a cheep but sharper lens compared to samyang 8mm 3.5,
2. and whats sharpest out there (regardless of price) for pentax k mount.
3. is there a point in looking to non k mount lenses with some adapters? thank you.
p.s. some lenses have a reviews on dxo mark with perceptual mp measurements but not all of them. that makes it hard to compare. any advice on search strategy?
Forum: Monthly Photo Contests 04-02-2015, 12:29 AM  
Shadows in Snow
Posted By mantas
Replies: 12
Views: 827
very nice shot.
Forum: Monthly Photo Contests 03-02-2015, 12:12 PM  
Winter moonscape
Posted By mantas
Replies: 14
Views: 803
very nice shot. congratulations.
Forum: Pentax Forums Giveaways 12-14-2014, 07:32 AM  
3 Million Post Giveaway: Confirm your entry!
Posted By mantas
Replies: 2,854
Views: 112,825
i would like to get this lens :)
Forum: Mini-Challenges, Games, and Photo Stories 12-07-2014, 03:51 AM  
Post-Processing Post Processing Challenge #130
Posted By mantas
Replies: 38
Views: 4,246
So I see people are doing more fun stuff, i decided to try something more fun too. I hope its not "too much"
Forum: Mini-Challenges, Games, and Photo Stories 12-04-2014, 06:23 AM  
Post-Processing Post Processing Challenge #130
Posted By mantas
Replies: 38
Views: 4,246
i didn't noticed BW version..
Forum: Pentax K-3 Photo Contest 05-31-2014, 04:06 AM  
Landscape Langueur
Posted By mantas
Replies: 3
Views: 553
before the storm? :) nominated
Forum: Pentax K-3 Photo Contest 05-31-2014, 04:06 AM  
Architecture Bridges of the Nepean
Posted By mantas
Replies: 1
Views: 578
nice shadows making letter "K" nominated
Forum: Pentax K-3 Photo Contest 05-26-2014, 09:50 AM  
Streets You'r looking at me ?
Posted By mantas
Replies: 2
Views: 711
it took me quite some time to understand what is in the picture :) i nominate this shot
Forum: Pentax K-3 Photo Contest 05-26-2014, 09:49 AM  
Black & White Stencil
Posted By mantas
Replies: 3
Views: 681
i nominate this shot. quite an intriguing shadow
Forum: Pentax K-3 Photo Contest 05-26-2014, 09:47 AM  
Abstract summer bumblebee
Posted By mantas
Replies: 2
Views: 831
very nice capture - i nominate this shot
Forum: Pentax K-3 Photo Contest 05-26-2014, 09:47 AM  
Landscape Man in the fog
Posted By mantas
Replies: 4
Views: 914
very nice capture, it looks like world is divided in two. i nominate this shot
Forum: Pentax K-3 Photo Contest 05-26-2014, 09:40 AM  
Abstract Ŕ ma fenętre, un orage / at my window, a storm
Posted By mantas
Replies: 9
Views: 827
that's an astonishing shot - i nominate it.
Forum: Pentax K-3 Photo Contest 05-26-2014, 09:39 AM  
Abstract Koh Phi Phi Don
Posted By mantas
Replies: 1
Views: 581
i nominate this shot, though ships could have been lighter..
Forum: Pentax K-3 Photo Contest 05-26-2014, 04:57 AM  
People Nomad
Posted By mantas
Replies: 6
Views: 1,921
very nice work - dof makes it like a fairytale. i nominate this shot.
Forum: Pentax K-3 Photo Contest 05-26-2014, 04:44 AM  
Landscape sunrise at borobudur
Posted By mantas
Replies: 21
Views: 1,671
that looks like a painting. i nominate this shot
Forum: Pentax K-3 Photo Contest 05-26-2014, 04:43 AM  
Pets Beck
Posted By mantas
Replies: 7
Views: 913
lessie - the lion king :) i nominate this shot
Forum: Pentax K-3 Photo Contest 05-26-2014, 04:43 AM  
Night Why Why Why
Posted By mantas
Replies: 3
Views: 1,017
ghosts on a shore :) i nominate this shot
Forum: Pentax K-3 Photo Contest 05-26-2014, 04:37 AM  
Black & White room with a view
Posted By mantas
Replies: 5
Views: 762
i nominate this painting :) ups i meant a photo :)
Forum: Pentax K-3 Photo Contest 05-26-2014, 04:35 AM  
Misc kerstboomverbranding
Posted By mantas
Replies: 12
Views: 908
the guy is having a wooden hand :) very nice capture - i nominate this shot
Forum: Pentax K-3 Photo Contest 05-26-2014, 04:34 AM  
People All alone through the night
Posted By mantas
Replies: 9
Views: 1,231
absolute chaos! that's a spirit of a big city i guess :) i nominate this shot.
Forum: Pentax K-3 Photo Contest 05-26-2014, 04:31 AM  
Landscape Wartime Remains
Posted By mantas
Replies: 17
Views: 1,866
very nice combination of concrete structure and this wooden poles that seem to continue imaginary line towards the sky :) i nominate this shot.
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