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post #17311 of 29551
Quote:
Originally Posted by Marin View Post
The levels aren't accurate unless they're calibrated.
?? Levels don't need to be calibrated, they are physics! an air bubble is going to seek out the highest point. Only when it is truly level will it be able to stay smack dab in the middle. No calibration necessary!
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post #17312 of 29551
Quote:
Originally Posted by robchaos View Post
?? Levels don't need to be calibrated, they are physics! an air bubble is going to seek out the highest point. Only when it is truly level will it be able to stay smack dab in the middle. No calibration necessary!
Exactly what I was thinking. The only way it could be wrong would be if the level wasn't straight on the camera.
 
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post #17313 of 29551
Quote:
Originally Posted by robchaos View Post
?? Levels don't need to be calibrated, they are physics! an air bubble is going to seek out the highest point. Only when it is truly level will it be able to stay smack dab in the middle. No calibration necessary!
Quote:
Originally Posted by foothead View Post
Exactly what I was thinking. The only way it could be wrong would be if the level wasn't straight on the camera.
There's the answer. So yeah, needs to be calibrated.
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post #17314 of 29551
Quote:
Originally Posted by Marin View Post
There's the answer. So yeah, needs to be calibrated.
It was put there by the factory though. Seems like they would've gotten it right.


How does one even go about calibrating a level? There's no way to adjust anything, and when I checked it last night, it was as perfect as it gets.



It's kinda hard to see against the camera, so follow the line up from the bottom. For reference, those grooves in the camera are ~1mm wide.

If this thing isn't perfect, it's well within the margin of error for reading the level. Having it calibrated to like 1/100th of a degree would really make no difference.
 
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post #17315 of 29551
Photography is art, not science. There's more to a great shot than a perfectly level horizon.
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post #17316 of 29551
Quote:
Originally Posted by foothead View Post
It was put there by the factory though. Seems like they would've gotten it right.


How does one even go about calibrating a level? There's no way to adjust anything, and when I checked it last night, it was as perfect as it gets.

*snip*

It's kinda hard to see against the camera, so follow the line up from the bottom. For reference, those grooves in the camera are ~1mm wide.

If this thing isn't perfect, it's well within the margin of error for reading the level. Having it calibrated to like 1/100th of a degree would really make no difference.
Anything can get knocked out of alignment and I'm surprised theres no way for the level that's built in to get calibrated. On all the Sinars there's screws that can be adjusted that allow the level to be moved.

And besides the rear standard (which would be the horizontal axis) does your camera have a level for the vertical axis?

Quote:
Originally Posted by BlankThis View Post
Photography is art, not science. There's more to a great shot than a perfectly level horizon.
First of all photography started off as a science. Getting past that the levels aren't for getting a perfectly level horizon and I hope others don't think that too. It's for correcting the perspective of the shot which will be off if the horizontal and vertical axises are off.

Go look at some good architectural photography and you'll see what I mean.

http://en.wikipedia.org/wiki/Julius_Shulman

http://www.getty.edu/art/exhibitions/shulman/
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post #17317 of 29551
lol okay chief.
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post #17318 of 29551
Quote:
Originally Posted by Marin View Post
It's for correcting the perspective of the shot which will be off if the horizontal and vertical axises are off.
I find that for a lot of what I've been shooting, I would love a 20-foot tall tripod to get the correct perspective. I don't have the patience or budget for a view camera, although a grown man climbing trees does look a little odd to the casual observer.
post #17319 of 29551
Quote:
Originally Posted by Marin View Post
Anything can get knocked out of alignment and I'm surprised theres no way for the level that's built in to get calibrated. On all the Sinars there's screws that can be adjusted that allow the level to be moved.

And besides the rear standard (which would be the horizontal axis) does your camera have a level for the vertical axis?
It's basically embedded in the metal. There's no way that could get knocked out of alignment without destroying it in the process.

Vertical axis? Why would I need that on a view camera? I'm not going to be stitching panoramas, so it should make no difference if the vertical axis is correct or not.

Quote:
Originally Posted by sub50hz View Post
I find that for a lot of what I've been shooting, I would love a 20-foot tall tripod to get the correct perspective. I don't have the patience or budget for a view camera, although a grown man climbing trees does look a little odd to the casual observer.
Shift lens?
Edited by foothead - 10/30/11 at 11:43am
 
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post #17320 of 29551
Quote:
Originally Posted by foothead View Post
It's basically embedded in the metal. There's no way that could get knocked out of alignment without destroying it in the process.

Vertical axis? Why would I need that on a view camera? I'm not going to be stitching panoramas, so it should make no difference if the vertical axis is correct or not.
The vertical axis plays a huge role in the perspective since if it's not corrected objects can appear to be leaning forwards or backwards.

http://www.cambridgeincolour.com/tut...ft-lenses1.htm



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