Using sensor shift

Found this over on the US forum;

http://www.pentaxforums.com/forums/6-pentax-dslr-discussion/275602-composition-a...

Anyone tried it here?

Not yet... but certainly will!

Who needs tilt-n-shift lenses
Matt

I have used it in macro work and its brilliant for making that final composition when the tripod head/ focus-rail is a bit fiddly and inexact for the position you want.

Not tried for perspective shift though - be interesting to try it out sometime!

I've used it since k-7 and yes works fine, within limited boundaries. Better than nothing! I can't remember why I stopped using it though, I think it was having to reset it after every photo through the menu system? Can't remember offhand.

I saw a demo of this where it was really useful when you couldn't physically back up any further to fit the subject in shot. Seemed a great use of the pentax sensor shift system.

Wonder if it could be automated actually, for the reasons nass has mentioned above. There is a very real chance that users will often be moving the sensor to the extremes for each of 4 consecutive shots, so potentially this could be done internally via a software option.

here's a video link

and here's another link

Help please. I'm a little confused with this. What does each of the movements, up, down, left, right, and the front wheel achieve. which way do you move what and what are the effects? CHEERS Vic.

See if these help Vic> http://www.pentaxforums.com/articles/tutorial-videos/how-to-turn-any-lens-into-a...



http://www.pentaxforums.com/articles/tutorial-videos/sensor-shift-in-action-incr...

Vic,

Assuming the camera is in landscape orientation...

Up arrow shifts the sensor up - effectively shifting the PoV higher. So if the verticals are tilting back (the normal situation when looking up at a building) then shifting up will correct the converging verticals.

Down arrow shifts the sensor down.

Left / Right move the sensor - you'll need these when in portrait orientation

The rear wheel rotates the sensor, correcting sloping horizons.


I had a quick go with the DA12-24 at 12mm and the shifting does give a reasonable amount of control. I'll give it a go next time I'm doing some architecture

Just watch out for vignetting - because you're moving the sensor closer to the edges of the image circle

Matt

John. Thanks. The link was OK. It tells you what to do and how to do it, but it assumes you know how to use a tilt & shift lens in the first place.
Thanks anyway.

Matt. Thanks. After the camera being in landscape the next sentence says it all. Opposites apply up/down, left/right. I just didn't know which movement did which operation with the verticals. The rear wheel duplicates the built in electronic spirit level which I have used on the tripod for landscapes. I must try it sometime.
Thanks again to you both. CHEERS Vic.
P.S. I got my front & back wheels mixed up. Vic.

that's rather nifty