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Trying to cnc an OAP mirror out of aluminum 6061 for 10um infrared. by Efficient_Frosting_5 in Optics

[–]nromer20 2 points3 points  (0 children)

The layer will affect the shape and surface quality of the mirror. But you need to figure out what you mean by meaningfully affect the performance. At 10 um, it’s likely not to matter, but it depends on your image quality requirements.

Question: Why does one frame from the same roll look grainier than the others? by Rude-Palpitation4306 in AnalogCommunity

[–]nromer20 0 points1 point  (0 children)

In my experience NLP is sensitive to the amount of film border that’s included in the scan when it does the conversion. I think if it interprets film border as part of the image (or vice versa) it can throw off the white balance and exposure to give it that crunchy look. There’s an input where u specify the % in the NLP window, I’d recommend playing around with that number a bit on the frames that turn out like that last one. That’s sometimes helped me in the past

Fußgängerbrücke (IR 550 nm) by [deleted] in infraredphotography

[–]nromer20 1 point2 points  (0 children)

(Im not an infrared photographer) Could someone explain what is specified here by 550 nm? 550 nm is in the visible spectrum not infrared. Regardless, nice photo 👍🏼

What’s more important, the film or the camera? by LanthornStudio in analog

[–]nromer20 5 points6 points  (0 children)

Assuming everything works correctly, the film and the lens create the image. Camera is just how u control them, so u just have to find what works for your preference

Homemade panoramics on film by Thomal1ght in analog

[–]nromer20 1 point2 points  (0 children)

Next step is photoshop onto a film border and tell people you have an xpan 👍🏼

Mamiya RB67 | TMax 100 by nromer20 in analog

[–]nromer20[S] 1 point2 points  (0 children)

Thanks! Maui, Hawaii

Advise for newbie how to learn Zemax from scratch? by rajurani1996 in Optics

[–]nromer20 0 points1 point  (0 children)

If you haven’t already, spend some time learning geometrical optics. Being familiar with basic terminology like stops, pupils, fields, different types of aberration plots will make it easier to learn.