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Forum: General Talk 11-13-2021, 10:57 AM

pentax and musick ?
Posted By mantas

Replies: 0
Views: 471

who of u speaks .. Polish ???

what does it say?

You Tube

You Tube

src="https://www.youtube.com/embed/qWraM_bBruk?controls=1" allowfullscreen><br />

Forum: Pentax SLR Lens Discussion 08-10-2021, 11:29 AM

pentax lens adapter
Posted By mantas

Replies: 8
Views: 840

yes, sorry that was old m42! thank you all for input. i wonder.. could such adapter be created without any optics, it would only crop the image circle ( as you say k mount is wider/bigger then m42..)

Forum: Pentax SLR Lens Discussion 08-10-2021, 05:46 AM

pentax lens adapter
Posted By mantas

Replies: 8
Views: 840

Hello Pentaxians. I have a strange question, and not sure where to post it, hope that's a correct thread.

So there are adapters to mound old lenses to pentax cameras (k mount to m43 ? is that a name?)

But my question is - is there an adapter to mount pentax (k mount) lens to an old camera that has m43 screw mount?
Thank you.

Forum: Monthly Photo Contests 07-01-2015, 10:50 PM

Down the stairs
Posted By mantas

Replies: 8
Views: 911

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: 2,454

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: 2,454

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: 2,454

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: 915

very nice shot.

Forum: Monthly Photo Contests 03-02-2015, 12:12 PM

Winter moonscape
Posted By mantas

Replies: 14
Views: 928

very nice shot. congratulations.

Forum: Pentax Forums Giveaways 12-14-2014, 07:32 AM