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Author Topic: Shift lens  (Read 5577 times)
mannesty
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« Reply #15 on: February 21, 2009, 07:18:08 AM »

A lensbaby might be more useful.
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Peter Smith
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spyglass
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« Reply #16 on: February 21, 2009, 10:06:42 AM »

I do agree with the opinion that through software you can easily correct images and you do not require a tilt shift lens. But...... a tilt shift lens can produce effects that you can not get otherwise. On another forum a member was posting shots he had taken with his tilt shift lens that fascinated everyone. The effect made everything look miniature and toy like. It was very interesting. I told myself that I would someday buy one just to be able to produce the effect. They do fetch a fair penny. The last one I bid on went for over $800  Sad

Spyglass
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sir_bazz
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« Reply #17 on: February 21, 2009, 02:49:00 PM »

On another forum a member was posting shots he had taken with his tilt shift lens that fascinated everyone. The effect made everything look miniature and toy like.

And even that can be duplicated digitally.....

http://www.visualphotogui...ke-fake-miniature-scenes/

bazz.
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spyglass
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« Reply #18 on: February 21, 2009, 06:50:47 PM »

Thanks Sir bazz for the link. I booked marked it   If CS3 is able to pull off the results shown on the link (which are similar to the examples that a real tilt shift lens can produce) then once again the world of software hits a home run.

Thanks for the link, Smiley

Spyglass
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tagov
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« Reply #19 on: February 23, 2009, 12:29:46 AM »

I think you have an error of concepts between the lens shift, tilt and the Lensbaby lenses. Each type of lens operates in a different way, and serves to separate issues.

Greetings.
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spyglass
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« Reply #20 on: February 23, 2009, 05:07:35 AM »

Shift being to move the center point of the lens off center of the flim or sensor plane (left/right or up/down)(X & Y).
Tilt changes the angle relationship between the lens and the film or sensor plane (non paralell alignment).
The lens baby, if flexible enough, could possibly do both. I have only seen them on photo so I can not say how flexible they are. I would think that it would be difficult to operate.


Spyglass
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tagov
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« Reply #21 on: February 23, 2009, 05:50:42 AM »

Ok! Spyglass. Sorry, I was not referring to you, my message was for Sir_bazz.
Add your comment to the particularity of Scheimpflug ( http://en.wikipedia.org/wiki/Scheimpflug_principle ).
I think that is very difficult to do with Lensbaby as with Shift, however, if you can do the same with that tilt.
Greetings.
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spyglass
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« Reply #22 on: February 23, 2009, 08:41:09 AM »

Tagov, do not appoligize this is exactly the interaction and disscussion that we invite on this site. I find that there is alway something to learn from the members here. I knew that CS3 could correct parallax and convergence, but I never guessed that it could produce the interesting Toy like effect. Thanks to this thread I have a new thing to learn and try in Photoshop.
As for the Lens baby I would love to see some user results from this device. It may be a fun and creative tool in the right hands (somehow I am thinking I would be all thumbs with it - ha ha)


Thanks again (have enjoyed your post so far),

spyglass
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sir_bazz
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« Reply #23 on: February 23, 2009, 03:03:50 PM »

Ok! Spyglass. Sorry, I was not referring to you, my message was for Sir_bazz.
Having recently used a friends 24mm Zuiko T&S on his 5D I think I know how they work as well.

My earlier post was a link to the demonstration on how to achieve the "miniaturisation" effect as per the earlier post by spyglass.

cheers,
bazz.



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Ben_Tax
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« Reply #24 on: April 17, 2009, 10:48:53 PM »

Can any one recommend a good quality Shift lens, i hate taking photos of buildings which seem to give me bad Converging verticals, in some cases you just cannot get far enough back to correct it.

The original Pentax K 28mm/3.5 shift is a wonderful lens for architecture. I use this lens with the K10 and K20 and it gives really good results. To reduce vignetting near the full shift (11mm off axis) you need to stop the aperture down to f/8 or better f/11. It is big, heavy and everything is fully manual, ofcourse. I would not like to miss that lens from my equipment list... There are limits for this lens: it is completely unusable at short distances. I tried it for product shots in the studio, but the images are unusable: unsharp to an unbelievable degree and with lots of "interesting" colour fringing. But as for the intended use as an architectural lens, it is brilliant.

Ben
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Ben_Tax
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« Reply #25 on: April 17, 2009, 10:52:40 PM »

Yes, I would thought that software correction is more convenient nowadays, especially with all photos in digital files Smiley

But the loss of quality is a hefty one, if trying to correct converging lines. Also the image angle gets much smaller, as you need to crop the corners after correction. The results are sure usable, but no substitute for a real shift lens.

Ben
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