Lightroom/Photoshop: Where can I find or how can I create a lens profile for a celestron model 52268?

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lens profile for a celestron model 52268 does any 1 know were i might find this profile and how would i install it
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Michael Pigeon

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Posted 2 weeks ago

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Todd Shaner, Champion

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This is a spotting telescope so not likely Adobe will create a lens profile. It’s also a fixed aperture and focal length lens so you only need one (1) lens profile setting. You should be able do this using the Lens Corrections> Manual panel 'Distortion' and 'Vignetting' controls and then save it as a Develop Preset with just 'Lens Distortion' and 'Lens Vignetting' checked. Take a picture of a building or object (metal rail fence) that has numerous vertical or horizontal straight-line delineations across the image. Then use the Manual Distortion Amount control to correct any "visible" curvature in the image. As long as the lens doesn’t have asymmetrical distortion you should be able to correct it.

Take a picture of an evenly sunlit wall that is a light color. Use the Manual Vignetting Amount and Midpoint controls to correct the readings at the image corner, 2/3 out, and 1/3 out to match the center reading. Place the mouse cursor in the different areas of the image and match the readings in the Histogram as you adjust the two settings. You’ll need to go back and forth between the Amount and Midpoint adjustments to the get the required settings. You could also tape pieces of white printer paper on any evenly lit surface in the four areas being measured to improve the accuracy of the readings.

You're other option is to use the Adobe Lens Profile Creator Tool to create an actual lens profile. IMHO, it's overkill for this lens.

http://blogs.adobe.com/jkost/tag/the-adobe-lens-profile-creator-tool





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Michael Pigeon

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awesome this did the trick nicely thank you very much
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Todd Shaner, Champion

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Glad to help and good to hear that worked!
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Rikk Flohr, Official Rep

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This falls outside the realm of standard Lens Profile requests so I am not going to merge it into the master thread. I will leave it separate for people using telescopic optics.