GVM 650B LED for RA4 Reversal Test

[@felixzxw]

Very comprehensive presentation, I was missing a high power lighting rig and never knew gvm had such a lighting rig before.

[@unsellingwizard]

Great review, super informative I had no idea that reciprocity failure happened with short exposures as well as long exposures. Thank you for your videos!

[@vonantero9458]

A lot of films operate normally up to 1/10000. Not really an issue for most people, but the time is still marked in the datasheets for most films.

[@bernardpanier8231]

Great insight. Didn't think about reciprocity. Would pre-flashing help to solve this (a bit)? Also would you be able to use the same filterset (I only have a B&W enlarger) for normal and pre-washed RA4 paper?

[@Pixelwaster]

There was another channel that mostly was modified Polaroid folders. Not Ethan or Joe. He found there was a filter on the paper. He showed samples with and without the filter. If I can find the video in one of my saved lists, I'll post the name of vid and channel.

[@TheNakedPhotographer]

If it’s the one where he claims to wash the paper then only use a light yellow filter afterwards, I mentioned in my previous video that I was unable to duplicate his results through testing.

[@sainag1143]

Is it has super megenta shift and less lux??? True???

[@tomryaboi2550]

Green/magenta control? Are you sure?

[@TheNakedPhotographer]

Yes, but only a limited range to achieve white balance. My Sekonic color meter had me dial in a slight amount of magenta to reach white at 5500K

[@tomryaboi2550]

@@TheNakedPhotographeris this done on the app?

[@skunklungz]

"4 seconds is really hard for a portrait" and i've done 2 minute self portraits... oops lolll

[@joesphburnett9366]

🔥 *Promosm*

[@electroncraz91]

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