Sneak peak: DIY smallest vibrating adaptor.
 

My oscillating design housed in macro tubes, user interchangeable screens...
Picture 1
Picture 2
...got to hurry now.

Will post some footage tommorow.

Cheers,
T

Amazing! looking forward to footage and some more photos of adaptor;-)

Wow that looks great... so perfectly compact. With all these nice adapters coming out, I almost wish I never started my DIY project.

Hey man,
I saw your website and it doesn't seem to work. I guess you have some big players onboard with you like Cavision, reflexite etc...

The base mount of the adapter on the rods looked like the DiGi35 currently in progress lol! Looking good!

Some crappy shots...
 

>> Some really crappy pre-test shots here
170mb in total, but really crappy in quality. As you can see from with and without shots the moving noise issue is always there, gain was set to "0".
I forgot 35mm lens lens to f2 hence the light loss.

>> OOF frame grab 19mm @ f4, almost no vignetting but shows the grain @ f4

BTW all shot with Canon EE-A microlens screen.

I`ll edit and post something adequate when I get the time.

Regs,
T

By the way, HVX can focus to that EE-A screen from as close as ca 40mm without vignetting. Vibrating grain became somehow visible at f16 but at f8 it was like at f1.2 when observed on 42" plasma via component in.

So my design is officially 64mm in diametre and 84mm in lenght (for HVX) but shortest working size is only 56mm excluding rod mount and it operates on external 1.2v which can be modified to internal.

Another positive thing is that this design does not require HVX to have +10 achromat only something like +2, not sure exactly but I`ll confirm that later.

I hope I can convert post some test footage for web in the morning.

Cheers,
T

Here you go, three full resolution test clips from HVX200 with my vibrating DOF adaptor in XviD:
1. SLR lens @ f1.2 (22mb)
2. SLR lens @ f16 (18mb) Might have been only at f8...
3. Without SLR lens (9mb)

Only optical element in this design is an EE-A screen.
As Cavision`s universal rails mount doesn`t accommodate HVX we were forced to lay everything up on a table and couldn`t align everything perfectly not to mention focusing HVX on focusing screen hence the soft image.

Cheers,
T

Dangit
 

I wondered when someone would pick up on those macro tubes. I use those same ones (or extremely similar) for my own design. What's the thread size on those Toenis? Mine are approximately 52mm. I got mine from Fotodiox.

Mike, I think those tubes have ca 60mm thread size and inner diametre of 57mm to accommodate this, soon available to all DIYers.

T

One question. That little holder device doesn't seem to have the tab for the Canon EE-A. Any problems with that. Looks VERY nice. Very professional. Well done, I must say.

I'll check the size of the tubes I have. Can't remember the inner diameter right now. I think the ones I have are smaller than 57mm. But I will check. Not to force your hand or anything, but how much would that part be by itself? Just curious. =)

That holder/oscillator device has tabs/slots for almost any 35mm screen not bigger (excluding tabs) than 37x25mm and 1.6mm in thickness it`s just at the other side of the device.
Those parts will be CNC milled from eracetal copolymer as it has the best resilence and dimensional stability as well as a low thermal expansion rate plus exellent wear resistance.
Estimated price with vibration motor (that matches the physical properties of the vibrator material) would be something like $50 as this cann`t be beaten for all that R&D nor custom CNC milling job.
Add only your favorite focusing screen and a macro tube and that`s almost all you need, except one must figure out how to attach all that to camera ;).

One thing I obserwed from pre-test frame grabs was that light loss with that EE-A screen is quite noticeablefor me at least:
55mm SLR lens @ f1.2 EE-A microlens screen
Without adaptor
Two compared together I think it loses about two stops as that exposure scale indicates.
Can someone tell how bad that really is?

Best regards,
T

Another question. How HAVE you figured out how to attach it to the camera? Or have you not actually attached it? The threads on the tube I use are not standard filter threads, so they won't actually thread into a stepdown ring or onto a camera. Have you overcome this problem, or have you just put the adapter on that stand and placed it at the proper distance from the HVX lens?

i was trying to set up such vibrating device with thin steel spring blades taken from big watch.
the biggest problem being the weight of the plate +GG.
what is the thickness of the GG glass you use ?
(i ordered 0.2mm thin glass for this).

Mike, it attaches to the camera via rods only as Redrock`s M2 does.
We are in the progress of making 58mm to 60mm thread adaptor to connect those cheap macro tubes to anything with 58mm threads.

Giroud, this oscillator uses lightweight frensel focusing screen(s) made of optical acrylic.

Another thing to mention is that when using cheap Canon EOS/EF mount macro tubes one can use almost any 35mm lens out there, including $150.00 55mm f1.2 Pentax K lens with EOS adaptor from www.eBay.de ;)...
... and Nikon, Pentax K, M42, Olympus OM, Contax/Yashica and Leica R for example.

Cheers,
T

Toenis, i'm not sure what setup You used in second file 2. SLR lens @ f16. Is that You stopped 35mm lens down to f=16? Asking because i don't see any difference in depth of field compared to first file 1. SLR lens @ f1.2.

There certainly is difference in depth of field between those two HVX200 clips. I quess that maybe I set the aperture to f8 instead of f16. Objects were quite close to lens and the background just remained out of focus.

I`ll try to make some adequate tests when I get the time.

T

Toenis, if it's really 8 or 16 then congratulations! There's no adapter giving grainless footage over 5.6! Correct me if i'm wrong...

Hello all.

I made an attachment for my 35mm adapter using those same macrotubes were I glued a 58 mm UV filter to a plastic protective rear lens cap, makes for easy removal.

Best, M.

One of the best DIY solutions to screw those macro tubes to camera lens is to take scheap 55mm rubber lens hood and rip off the rubber so you get a tube with 55mm male and female threads. Outside diamete of that tube just happens to be 57mm on that is very very snug fit into those EOS macro tubes shown on my pictures. Now one must only add step up/down ring(s) to fit your camera`s filter threads. put everithing together, align everything and glue that 55mm tube inside one of the macro tubes so that everithing stays aligned. It`s easyer to clue/align everithing when one makes align marks to everithing before glueing. Downside of that design is that you can use your camera to adaptor connector with only that camera it was aligned before fixing it with glue. Fortunately another set of tubes and rubber hood plus stepdown ring will cost $25 and you can use your adaptor again with different camera.

BTW two $15 macro tube sets might be needed for different camcorders to get the focusing screen to camera distance vignette free, it`s much cheaper than adding empty UV filter rings for cpacers.

AVOID USING SUPER GLUE - vapours from super glue will ruin any optical coatings and focusing screens alike.

Cheers,
T

Would you mind diagramming the parts for us? I'd love to see how this is put together. Where do you find an oscillator for the screen?

It`s CINEDOF™`s Noise Reductor beta ;) from www.cinedof.com

T

Oh, I found a action shot from last night MV shoot with tiny GS150 attached to my DOF adaptor.
And some quick raw test footage from that exact moment.

Did I mention that CINEDOF™`s Noise Reductor runs 20+ hours straight on single off the shelf 1.2v 2300mAh AA size rechargeable battery?

Best regards,
T

The latest design (on your website) looks alot more refined than your first concept picture.

So do you think it's comparable to a spinning disk or other vibration adapters at this point in reducing grain? Have you minimized movement on the focus plane? Because that seems to be the main problem you would run into with such a design.

Great work so far :)

How would that design move on the z axis? It seems like a pretty solid design in terms of just moving on the x and y...

because the thickness on the Z axis of the leaf spring might allow for Z movement. The type of plastic and coin motor used would effect it too I suppose.

T,

Do you ever think your design will come in smaller sizes? Instead of 57mm maybe a 52 or 51mm design? I want to try and fit this in a thorlabs tube, but they only have 3in and 2in diamaters. I could go for the 3in but I'd have to order three seperate one's seeing how they only make 3in round 1in long and that's pretty costy. 2in would be almost too perfect. Lightweight, cheap and just screw on parts.

-Rh

Solomon, it really is quite solid design with minimal Z axis movement as leaf springs are 2mm thick but only 0.44mm thin. One can move it on Z only with brute force.

Rich, we are working on smaller diametre design but as thre are no good reliable vibraton motors smaller than 12mm it is really hard to hide those under the 35mm frame without affecting overall design.

Best regards,
T

That's awesome :)

Quyen (Letus35) uses a 10mm motor that has more vibration power than a 12mm coin motor on the Letus.

BTW, any experiments with smaller 4mm or 7mm vibration motors? definately a smaller footprint but they probably don't have the power

you do not need power if the mass is light.
that is the problem of most vibrating system, that is while i was asking for the GG thickness.
ideally you should not even have to move the motor itself it the vibration can be transmitted a way or another (moving magnet or coil ?)
i am waiting for a 0.2mm glass to test how much it is better than a 1mm glass.

CINEDOF™`s noise reducing screen holder doesn`t need even half the power required by motor manufacturer specs resulting in about twice the lifespan and quieter operational noise.
Oh, and see my EE-S screen samples used with it here: http://www.dvinfo.net/conf/showthrea...t=74356&page=2

Regs,
T

Can you re-iterate the costs for the parts once again? What is needed overall to create such an adapter? Thanks!

Canon EE-S focusing screen $35.00
Made in China extension tubes for EOS (Nikon to be confirmed) $20.00 (x2 depends on camcorder)
Rubber lens hood with 55mm threads $5.00
Stepping ring from your camcorder lens thread to 55mm $5.00 (multiple may be needed to achieve greater distances)
Rechargeable battery with wires $3.00
Plus soon to be available CINEDOF™ noise reducing screen holder $50.00*
TOTAL: $118.00 without shipping

Additional parts depending on cameras would be:
One more set of extension tubes $20.00
Additional stepping rings $5.00 each
Canon 250D 58mm achromat $70.00 with matching stepping ring.

An as for rod support:
Cavision rod support for $150 or Bogen telephoto lens support for $60
Or DIY support of some kind. $?.00

Best regards,
T


*CINEDOF™ noise reducing screen holder will ship internationally for $5.00

Can you stop down the EOS lens in this setup?

Edit: Sorry, stupid question. You uploaded footage with F1.2 and F16 ( F8? ;)
So it must be possible to stop the EOS lens down.

Thanks! Toenis.

Thomas, EOS mount takes almost any SLR lens out there with lens mount adaptors except Canon`s own FD mount lenses. EF mount can take Nikon, Pentax K, M42, Olympus OM, Contax/Yashica and Leica R for example. So www.ebay.de will give European users many many good value lenses like f1.2 55mm Revuenon with Pentax K to EOS adapter.
Even EOS EF lens aperture can be unofficially pre dialed on any Canon EOS body with DOF preview button as follows: Set your desired lens aperture on EOS camera body then push the DOF preview button and unscrew the lens. Voila, aperture is set.
In the other hand aperture on electronic Nikon mount lenses without aperture ring will remain closed and are not usable with shallow DOF adaptor.

Best Regards,
T

what kind of noise that CINEDOF™ vibrator makes
 

Maybe somebody is interested of what kind of noise that CINEDOF™ vibrator makes (44mb, on-board mic)
Qute nice sample too for sub $600 cam I think.

Best regards,
T

Availability Date
 

Toenis, when will your vibrating piece be available for purchase? Will you give a student discount?

Yes, when will your website be up with a shopping cart?

Hey there. I asked about making it smaller and it doesn't look like it will work, but what about bigger? I have a Diffuser in mind, and I think it will work almost flawlessly with very minimal light loss and good bokeh. I'm looking for the diffuser slot to be the same but the diamater of the piece to hit the mark around 75mm, it will fit perfeclty in a 3inch thorlabs tube. Also pefect for everything else. What do you think? Will this be possible for extra money?