petrock

I have a number of good Pentax, Sigma, Samyang, Promaster (a *good* 60-300/4-5.6 is excellent 60 to 300!) , and others I can't think of, from M to DA. I realize that aperture actuation would be ...

Can Pentax K-mount lenses be mounted to the Sigma SD Quattro H via adapter, with infinity focus (without regard to aperture control) ? Thanks !

Paul---There is nothing more beautiful than a bird, as you show us so well here. Thank you for these great shots!

Maybe my imagination ran away with me on #3: Forget molds, etc. I think just a stiff plastic or aluminum lever---again of c.2 cm. length, and of a width at one end about 3X the width of the ...

Idea #1: I want to put a stop on the OFF-ON-VIDEO switch, which will prevent it from reaching the VIDEO position. That way, I can just hit the switch and get ON, and not VIDEO, which I never use. ...

I like APS-C because the lenses, for equivalent image delivery, are smaller and lighter---and the increase in noise is OK with me. How can they improve on that ?

You've got the greatest bunch of shots !!

For APS-C:  what focal length will produce a 90 deg. horizontal field of view ?

Tyngsboro! I'm over in Salem (MA). Beautiful creatures. What body of water is that? When was the first you saw those vultures around there? I just noticed them in Rowley last year, but they may ...

Have a look at this: Pentax KP custom grip project (WIP) – Forum – Snappiness

If I had bought a KP instead of the K70, I'd shape a grip to fit me, out of wood or plastic.

Beautiful shot of a beautiful bird. We have them nowadays here in Salem, Massachusetts too. One pair nests in an over-river transmission tower, and others on stationary navigational aids.

When I hook my Pentax K70 camera up to a 4K TV via my HDMI cable---to view JPEG stills---what I see is a skeletal, mis-colored image. Is this because the camera's output is 2K, or because I need a ...

I'm a fan of crows, myself. This shot reveals their beauty and grace. Have you heard of Snowflake Bentley? Wilson Bentley - Wikipedia

Do all modern still cameras that do movies in 4K (or not), display stills via HDMI in 4K on a 4K screen ? Thanks!

[My Dad was the proud owner of a new black '55 T-Bird, with removable hardtop.] Don't worry. The ingenious plan is, that the taxpayer (whoever he/she is) will take up all the slack. It's happening ...

That's one beautiful shot ! If it were on my wall, I'd enjoy the color shot, in preference.

It looks like you've had a frost. Around here--New England--it takes a frost to really bring out the full color. There's been no frost here yet, and A LOT OF RAIN--Salem, Massachusetts---so ...

I'm no old hand at bird photography. But because the bird is quite camouflaged here, I would try for a shot with blue sky, or bright clouds, as background to the bird itself. Or the darkness of ...

Wonderful spot on earth--wonderful dog--wonderful shots ! Thanking you...