Super Takumar 2.4/105 yellowing affects image quality??

**yucatanPentax** · 12-16-2021, 01:20 AM

Originally posted by barondla

Mugenmoonz0 think twice before fixing it. Read about a guy that loved his 50mm Takumar. Decided to fix it, and the magic was gone. He barely used it after the fix. Ended up buying another yellow Takumar. 30 years is a long time to wait for it to turn yellow again.

Thanks,
barondla

That's interesting. I don't recall any difference in the image characteristics before and after. Before, I just set a custom white balance before shooting. After, I didn't have to. Other than that, I didn't detect a change.

Do you recall what differences the person saw? I suppose some degree of diffraction changed with the removal of the yellowing?

**barondla** · 12-16-2021, 04:13 PM

Originally posted by yucatanPentax

That's interesting. I don't recall any difference in the image characteristics before and after. Before, I just set a custom white balance before shooting. After, I didn't have to. Other than that, I didn't detect a change.

Do you recall what differences the person saw? I suppose some degree of diffraction changed with the removal of the yellowing?

Don't remember - it has been a year or two. He might have been shooting B&W film. He pointed out there are thousands of "clear" lenses available, and few yellow. Made me think twice.

Thanks,
barondla

mugenmoonz0 · 12-25-2021, 01:31 AM

Hi everyone, thanks for chiming in.
I decided not to perform the de-yellowing process, after shooting one roll through it. Turns out the yellowing on my lens has zero to negligible effects on the overall image quality.

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12-16-2021, 01:20 AM	#16
yucatanPentax Loyal Site Supporter Join Date: Dec 2009 Location: Dallas / Yucatan Posts: 1,840	Originally posted by barondla Mugenmoonz0 think twice before fixing it. Read about a guy that loved his 50mm Takumar. Decided to fix it, and the magic was gone. He barely used it after the fix. Ended up buying another yellow Takumar. 30 years is a long time to wait for it to turn yellow again. Thanks, barondla That's interesting. I don't recall any difference in the image characteristics before and after. Before, I just set a custom white balance before shooting. After, I didn't have to. Other than that, I didn't detect a change. Do you recall what differences the person saw? I suppose some degree of diffraction changed with the removal of the yellowing?

12-16-2021, 04:13 PM	#17
barondla Site Supporter Join Date: Sep 2006 Location: midwest, United States Photos: Gallery \| Albums Posts: 5,714	Originally posted by yucatanPentax That's interesting. I don't recall any difference in the image characteristics before and after. Before, I just set a custom white balance before shooting. After, I didn't have to. Other than that, I didn't detect a change. Do you recall what differences the person saw? I suppose some degree of diffraction changed with the removal of the yellowing? Don't remember - it has been a year or two. He might have been shooting B&W film. He pointed out there are thousands of "clear" lenses available, and few yellow. Made me think twice. Thanks, barondla

12-25-2021, 01:31 AM	#18
mugenmoonz0 New Member Join Date: Dec 2021 Posts: 5 Original Poster	Hi everyone, thanks for chiming in. I decided not to perform the de-yellowing process, after shooting one roll through it. Turns out the yellowing on my lens has zero to negligible effects on the overall image quality.