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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Modular Dragon OLPF sneak peak

Blair S. Paulsen said:
Don't know if it would work, but…

perhaps a magnet mount, kind of like on the power connection on the MacBooks… Seems like a fast, secure and flat/even option.

Just an idea…



Cheers - #19
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I Agree. After all, Jarred said tolerances are measured in microns. This seems the only way to insure those tolerances are maintained for each change of OLPF.
 
Elsie N said:
I Agree. After all, Jarred said tolerances are measured in microns. This seems the only way to insure those tolerances are maintained for each change of OLPF.
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Im sure if Jarred says screws are OK and they are moving to tooling quickly they KNOW screws work. I`m sure they have not been testing with Velcro.
 
Antoine Baumann said:
screws works for microns as all lenses have their mount screw on
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But screws are subject to human error. (For instance, over-tightening) It's hard to "screw up" a magnet. Pun intended.
 
Bohdan Klos said:
Im sure if Jarred says screws are OK and they are moving to tooling quickly they KNOW screws work. I`m sure they have not been testing with Velcro.
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Velcro is magnetic?

By the way, I didn't say screws won't work. I just agreed with Blair that maybe magnets are a better solution?
 
Blair S. Paulsen said:
Don't know if it would work, but…

perhaps a magnet mount, kind of like on the power connection on the MacBooks… Seems like a fast, secure and flat/even option.

Just an idea…

Cheers - #19
Click to expand...

Magnet mounting would be a bad idea for one simple reason, metallic dust particles.
 
Elsie N said:
Velcro is magnetic?
By the way, I didn't say screws won't work. I just agreed with Blair that maybe magnets are a better solution?
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Velcro is like a hairy celotape. Not magnetic. My point was they have ben testing with appropriate materials. Not celotape, magnets or Velcro 8)


I`d rather they focused time on making an old OLPF that has good colour rather than worrying someone will destroy the screws on their camera. THAT would be priority number one for me = A old OLPF with new OLPF colour.

There are other important screws we use daily without a problem. If a customer "screws up" the screws on the lens mount they would have a problem too. These are quality metal screws not some soft metal from a Lowes or Home depot/B&Q.
 
Last edited:
Hoping to sneak this one in again for a possible quick answer: Would this new interchangeable OLPF system not benefit the Epic-X ecosystem to some degree? I know, for some of you it's "old" technology but, still... :huh:
 
Bohdan Klos said:
Velcro is like a hairy collotype. Not magnetic.


I`d rather they focused time on making an old OLPF that has good colour rather than worrying someone will destroy the screws on their camera. THAT would be priority number one for me. A old OLP with new PF colour. If a customer "screws up" the screws on the lens mount they have a problem too. There are other important screws we already use daily without a problem. These are quality metal screws not some soft metal from a Lowes or home depot.
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We have different concerns.

I'm highly pleased with the current OLPF and yes, I try to think ahead to any and all potential problems, such as overtightening the screws or a screw becoming loose over time if not sealed with loctite or some other sealer as is used on screws on some lenses.

As for your analogy between the OLPF and the lens mount... ahem, check the sizes of those two different screws.

When you are making something from scratch and you are in the early stages where a change is beneficial for the entire life of the product, re-fabrication of such a small piece is inconsequential.
 
Jarred Land said:
4 screws similar to the lens mount and the screws already there if you look into your port hole on your dragon.

It needed to be screws as the filter needs to be flat as possible to the sensor for optical precision, snap-ins and push-fits don't accomplish that. Flatness is measured in microns when you are talking about focus planes so you want it to be solid.
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How many swaps can it tolerate before we see problematic focus shift due to normal wear and tear on the bolts or screw holes?
Something we need to take into account, no?
 
sure I have not seen the screws on this OLPF, but screws on lens mount are not so big, and that is known to work.

I would not swap the OLPF in the field but prior to shooting day. I might change my mind when I see the real world size screws of the OLPF, but for now I think screws are the best option.

But sure I'm all for the best option even if this is not screws.

cheers,
 
I've lobbied Jarred for something easier to handle than screws - if that's what it needs to be optically stable then so be it. Don't anyone think this didn't get proper consideration.

The screws ARE small, but I've had them in and out over and over without issue. A precautionary degree of care is a wise thing to apply in any kind of proximity to the sensor - common sense will see you right.

About the only thing I'd continue to suggest is a little push-in plastic / rubber plug to cover the OLPF glass while you get busy with the tools.
 
John Marchant said:
I've lobbied Jarred for something easier to handle than screws - if that's what it needs to be optically stable then so be it. Don't anyone think this didn't get proper consideration.

The screws ARE small, but I've had them in and out over and over without issue. A precautionary degree of care is a wise thing to apply in any kind of proximity to the sensor - common sense will see you right.

About the only thing I'd continue to suggest is a little push-in plastic / rubber plug to cover the OLPF glass while you get busy with the tools.
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I second some sort of rubber cover for the glass while the screws are coming in and out for sure.

can't wait to get my hands on these things. I love the ability to set the camera to the situation physically, optically and digitally. so sweet.
 
Jarred Land said:
Just thought I would give people a sneak peek on the Modular OLPF thats going to be available for Dragon soon.

There still people that prefer the old OLPF because even though skintones and highlight protection isn't as good as the new OLPF, they want a noise free image at higher ISOs that the old OLPF gives you by letting in more light. We of course will put whichever OLPF you want in your camera now... but the new OLPF module will make things alot easier to change.

The freedom and flexibility to make that kind of decision in different environments should be beneficial to everyone.. even if they only make the choice once and never change it again.

The Module install is pretty straight forward... we can do it or you can do it. Getting the old stuff out is the hardest part. The new "module" goes in easy and 4 little bolts and you are done. You dont need to touch any glass and you dont need to worry about putting it upside down or right side left. The front of the module is marked so you can see which one it is by just looking at the sensor so rental customers can quickly see which one is in camera.

At any rate... we are testing prototypes now and I expect these to be ready in 6-8 weeks after we get out of tooling. The OLPF Modules will be for sale in the store so you can choose whichever one you want or all of them and change at will. If you want to keep whatever OLPF you have in your camera right now you can still send us your camera and we can transfer your OLPF into a new module and send it back to you.

There will be 2 modules available out of the gate obviously ( The new OLPF and the OLD OLPF ) and IR PASS, ND, Clear and a few specialty ones will come after.

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That's a nice one Jarred, good on you. ;)
 
Small screws for a light weight item like an olpf - big screws for a PL lens.


Important thing is quality screws, precision holes and that you have more fingers than thumbs.
 
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