Why don't adapter makers sell diffusion screen to non-owners

Tim Joy

Tim Joy

Veteran
I would love to buy the diffusion screen to make my own DOF adapter, but they don't sell them if you're not an owner of the unit. What gives?

Every other part I can make, but that screen is the tricky part. :cry:
 
I think you answered your own question.

You can buy pc parts but you can't legally make them into a mac. Apple wants control of it's products and rightly so. It's the same basic scenario here. The adapter makers so far will not sell you leopard to put into a non-mac machine. Them's the brakes.
 
Lenilenapi said:
Redrock used to sell its screen along with a do it yourself manual. They may still do it.
Click to expand...


Yeah, I got one of those. It's obviously a factory second, and not the same screen that's in the M2.


If it's an issue that their profit margin is low, compared to the adapter itself, then raise the price.
 
that's why you get a hackintosh. and it runs fine.

because most of these adapter makers think their screen is the heart/secret to their success.
if they sold those, who's to stop someone else putting it in their adapter and selling.

the g35 would kill if they sold just their screen alone.
 
There is a guy on ebay that sells custom ground glass, I havnt tried any of it myself, but im looking at picking one up for the later versions of my adapter.
 
i got one off ebay before. can't remember who it was. nice guy, but forget using the GG as a viable option. If you try to vibrate it, it'll be impossible to get it perfectly cut. I got 3 from him because the first two snapped into 3's when trying to fit it in my vibrating holder. either too big, or too small. spinning it is out unless you do the pully style. and forget static, these aren't made for it.
 
tried a nikon D and that's it. i seen peoples footage of the Canon E screens and didn't like the bokeh so i didn't use any of them.

i can't speak directly for cinevate, but from Dennis's previous posts from way back and his interest on a certain forum, the birth of the brevis and the look of cinefuse screens seem a lot like Light Shaping Diffusers. Each diffuser is a different angle. The cfl1 is like 5 degree's and cfl2 is 10 degrees and so forth. once again, not proven, just guessing.

you can check those out here and request a sample of various types of screens for about as much as you would pay for a focusing screen. you can also bust open a cell phone and you can find some in there as well or any LCD for that matter. just need to vibrate the hell out of them.
http://www.luminitco.com/index.html
 
medium format it's just a screen that's bigger than your standard 36x24. you would want to use medium format lens as well if you desired. beatie screen is a good one suggested, although, very delicate and don't use it for experimenting. not cheap.
 
Here's some companies from what I've read make custom screens, might wanta give them a call.


Word on the street is that this guys is sick, but from what I've read he still makes them. i guess it's worth a try

www.satinsnowglass.com




Pentax makes a silent screen, here's another I haven't tried.

http://kmp.bdimitrov.de/misc/focus/screens/index.html





www.brightscreen.com


(Haven't tried this one yet)

http://brightscreenstore.com/store/index.php?main_page=product_info&cPath=2&products_id=58


I guess in a way it would be worth getting into making just screens. :)
 
twocik,

i offered to buy one of your screens from your I35 a while back and you said, in other words, not interested...ah well.
 
"i offered to buy one of your screens from your I35 a while back and you said, in other words, not interested...ah well."


Didn't have any more. I was using a few testing pieces, which are probably what you're referring to. I used a 2000 grit diffuser, 1000 grit, 700 grit, 500 grit, didn't have any duplicates to share. Actually cost me a few bucks, somewhere around $300.00 + shipping to have made. All which were ok in my opinion, but I've moved on to other things at the moment.
 
I am currently using thick plastic from a cd case and alot of sanding. I had a crazy idea for a spinning adapter the same size of the brevis. It wont be pretty, but it should get the job done. Time will tell.
 
Hi all, Easom Aerospace makes custom ground glass. They use true colorless optical glass and can even coat the reverse with an anti-reflective coating if desired. They are very bright and very very even. Contact Cory @ coryeasom@yahoo.com I think his GG is probably the brightest I have seen. He has some awesome Carbon Fiber rails as well. 18 inches long and 15mm. They are some of the stiffest available and look hella cool. Dont forget to ask about his DOF adapter, It is probably the best available but he is way to modest to just come out and say it. IG
 
Hi guys I grind my own focusing screens. I can make 9micron and 20micron screens as well as 360 grit screens. I can make them for you guys too. Alex MD on this forum also makes great ground glass. These are shots from my Sony FX1E with my own DIY vibrating adapter, with canon FD 50mm lens without any condenser lenses but with a SGpro achromat and without any color correction. Images were flipped in Premiere pro and de-interlaced. These ground glass can be washed and touched not like the canon EE screens. gregtay67@pacific.net.sg

gate.jpg
 
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