4x5 Screen comparison (Intrepid, Chamonix, Maxwell)

[roscoetuff-Skip Mersereau]

Thanks for all these posts. Interesting that Chamonix made the modified clamps. Direct contact with Hugo for these?

[younghoon Kil]

Direct contact with Hugo for these?

Yes!

[younghoon Kil]

Schneider Apo-Symmar 5.6/210mm Lens.

- Intrepid 4x5 MK4 View Camera & basic focus screen(ground glass).
- Chamonix 45H-1 View Camera & basic focus screen(ground glass, fresnel lens, clear cover screen).
- Chamonix 45N-2 View Camera & Maxwell Precision Optics HI-LUX Extra Brilliant Matte 4.7 focus screen(ground glass + fresnel lens, clear cover screen).

[Michael Rosenberg]

I have been a long-time user of Maxwell screens, installing them on my Linhof tech camera, and then buying them for my 45N-1. For the latter I bought his regular screen and his screen for wide angle lenses, and mounted it in a second back. I made my own hold down clamps. I shot a lot of interior architectural images (see my web site), and they were invaluable. I tried other screens, and none functioned as well as the Maxwell.

Mike

[GoodOldNorm]

Attachment 200860
Intrepid 4x5 MK4.

Attachment 200861
Chamonix 45H-1.

Attachment 200862
Maxwell Precision Optics's HI-LUX Extra Brilliant Matte 4.7 focus screen.

Sinar Sinaron-S 5.6/150mm MC lens.

Is the Maxwell screen ground with a finer compound? Is the Maxwell screen less opaque than the Intrepid and Chamonix screen? What is the best compound for making a DIY screen comparable to the Maxwell?

[tom43]

I have not had a chance to use a Maxwell screen, but according to Alan Brock‘s video it also comes with some drawbacks: Viewing angle is smaller, fresnel lines are stronger and could become distracting. Screens are not electronic devices and they cannot circumvent physics: Redirection of light in different way, but no amplification.