I had a reflex viewer and never liked it. I doubt it would be suitable at night with reduced light.
Two thoughts:
1) if you want a brighter viewing screen (ground glass)
You might try talking to Bill Maxwell - Maxwell Precision Optics.
He produces a variety of Fresnel Screens and Ground glass combinations for different cameras and formats. His screens are excellent, but not inexpensive.
I have one of his viewing screens for my Linhof Technika and it's really bright. He can also supply Fresnel lenses.
This is the information I have and believe it's current, though I have not spoken with him in over a year.
One cautionary note - Bill is a super nice guy, and quite talkative. So call when you're not in a big rush.
Maxwell Precision Optics
Work: 770-939-6644
Work: 770-934-0431
E-Mail:
MaxwellPrecisionOptics@yahoo.com
Address: P.O. 33146, Decatur GA 30033-0146
2) If you want to add light to a subject for focusing, check out some of the super bright LED flashlights available nowadays. Many on Amazon.
I recently purchased the item below and cannot believe how powerful it is - stronger than an auto headlamp and has a very wide beam. The price is quite reasonable. It will light up things at considerable distance, but it will not focus into a narrow beam light. However, there are focusable lights as well - you just have to search. If you don't want to use the rechargeable batteries, you can probably use 4 CR123s without the extension tube.
Amazon - SecurityIng® Super Bright Powerful 3800Lm 3X CREE XM-L T6 LED Flashlight
Hope this helps.
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