Letus Image flipping developement

Leo Mandy · December 20th, 2005, 06:47 AM

Ok, makes sense. Thanks Quyen. Is the drilling going to be a delicate operation, possibly screwing up the device? I am pretty handy, but I don't wnat to chance something if I decide to go for it!

Jelle Poupaert · December 20th, 2005, 12:53 PM

Just a thougth, and I might be wrong, but for users with a limited budget, won't buying an LCD screen to watch the flipped image in the end be a cheaper solution?
I've seen 6" LCD screens on ebay for $100-150...

Wayne Kinney · December 20th, 2005, 01:05 PM

Jelle,
The image flipper also solves the headache involved in post.

Tony Tibbetts · December 20th, 2005, 07:23 PM

Yes it is quite a headache, I very curious about Quyens new adapter kit. When will we see new footage from the flipper adapter?

Michael Maier · December 21st, 2005, 09:15 AM

Quote:

Originally Posted by Wayne Kinney

Jelle,
The image flipper also solves the headache involved in post.

Yeah, but I'm afraid it may also introduce distortion and extra light loss.
Is it really worth it in the end?

Craig Bellaire · December 21st, 2005, 09:41 AM

Well as for me. I would love to have the add on... BUT is it worth it...
My camera is the PDX10 and works perfect with just the LetusA. I had such a hard time with the zooming in on the GG with everything I tried and I even had the manual to the Micro35 and it just didn't work for me. Also with 1/4.7 chips an extra 1.5-2 stops is a lot... So I might just keep what I have and not do the Add-on..

Flip and deinterlace with V-Dub and it's over... I'll use a mirror to flip the image on the LCD while shooting...

Though I will say the work placed into this Letus Project is incredible and finally someone has flipped the image... Good Job..

Greg Bates · December 21st, 2005, 09:55 AM

Gimme the light loss, and if its too bad throw in a Beattie screen. But to for go flipping in post i'll make sure I have adequate lighting.

Ken Lamug · December 21st, 2005, 11:26 AM

Can't wait until Quyen comes out with a flipped letus in a single barrel.

Dennis Wood · December 21st, 2005, 01:10 PM

Greg, I don't think a moving Beattie would work due to the fresnel lens built into it. You need the diffusion part of the screen minus the fresnel treatment.

Greg Bates · December 21st, 2005, 04:51 PM

aahhh....yeaahhh...good point:)

Maheel Perera · December 21st, 2005, 08:45 PM

Quyen

"With the image flipping the light loss is 1.5 stops"

Was the complete unit loses 1.5 stops, or the flipping part only, loses that much of light.

Quyen Le · December 21st, 2005, 10:04 PM

When I said 1.5 stop, it's light loss for the whole unit with GG in place. Thanks.

Quyen

Bob Hart · December 21st, 2005, 10:45 PM

Quyen.

Just a thought.

At one stage, I was contemplating publishing my erecting (image flipping) device, a much larger and clunkier design using a CD size disk, but being a lesser mortal than yourself, was frightened off by the possibility of being nailed for patent infringement.

My intention was to make drawing files and print them to .pdf files which work on Windows, Mac and Linux. Then they could be printed off by the end-user onto sticky labels to be used as cut-through and drill-through patterns, then pulled off afterwards. Alternatviely the printed labels could be supplied to the end user.

Many printers these days are sufficiently accurate to make 1:1 patterns and it is a method I have already used with my own Agus designs. Two such are Canon BJC-7100 and the excellent Lexmark Optra S1250 and related product family.

You may be able to assist your end users by providing patterns to stick onto their existing devices to accurately mark the drillholes.

Providing they make accurate pilot holes and use depth stops on the drill bits and maybe a little grease or margarine on the bits to catch the dust and chips, my guess is the average home-builder capable or working to the thickness of a ballpoint pen line should not have a problem.

With regard GGs coming apart in transit, I suggest you might examine using two adhesives, one a soft silicone to dampen vibration, to be laid along outer edges and the main fixer being UV curable adhesive where there is face contact between the gg and the frame.

No doubt you have already thought of it but here it is anyway. After making your gg's, if they are glass, dress the outer edges to smooth off the pits and chips and chamfer the edge corners. This should eliminate some stress risers which might otherwise contribute to the glass cracking.

I have used common water clean-up white bathroom sealer for fixing the disk to hub - not relevent in your application - and pin spots of Loctite 358 UV curing adhesive. Should you decide to alter your design to glueing your two prisms together, the Loctite should also work.

Just a few thoughts.

Leo Mandy · December 22nd, 2005, 06:49 AM

Well put Bob, bravo

Michael Maier · December 26th, 2005, 06:00 AM

Has anybody got their new Letus35 with flipping feature and have any comments on the image and built quality? Does it still have the problem with dust and specs coming from the cheap plastic parts? Is it still made on plastic parts inside? How is the image quality with the prism system, any noticeable extra distortion and aberrations?
It would be great to see some footage.

December 20th, 2005, 01:05 PM	#48
Wayne Kinney Major Player Join Date: Jun 2005 Location: Brighton, East Sussex, UK Posts: 938	Jelle, The image flipper also solves the headache involved in post. __________________ Thanks, Wayne.

December 20th, 2005, 07:23 PM	#49
Tony Tibbetts Major Player Join Date: Aug 2005 Posts: 385	Yes it is quite a headache, I very curious about Quyens new adapter kit. When will we see new footage from the flipper adapter? Last edited by Tony Tibbetts; December 21st, 2005 at 12:21 AM.

December 21st, 2005, 09:41 AM	#51
Craig Bellaire Major Player Join Date: Aug 2004 Location: Rochester, NY Posts: 422	As for me Well as for me. I would love to have the add on... BUT is it worth it... My camera is the PDX10 and works perfect with just the LetusA. I had such a hard time with the zooming in on the GG with everything I tried and I even had the manual to the Micro35 and it just didn't work for me. Also with 1/4.7 chips an extra 1.5-2 stops is a lot... So I might just keep what I have and not do the Add-on.. Flip and deinterlace with V-Dub and it's over... I'll use a mirror to flip the image on the LCD while shooting... Though I will say the work placed into this Letus Project is incredible and finally someone has flipped the image... Good Job.. __________________ Craig Bellaire www.VerticalVideoSolutions.com

December 21st, 2005, 10:04 PM	#57
Quyen Le Major Player Join Date: Jun 2005 Posts: 356	When I said 1.5 stop, it's light loss for the whole unit with GG in place. Thanks. Quyen __________________ Affordable Adapter http://www.adapterplace.com

December 21st, 2005, 10:45 PM	#58
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 4,476	Bob Hart Quyen. Just a thought. At one stage, I was contemplating publishing my erecting (image flipping) device, a much larger and clunkier design using a CD size disk, but being a lesser mortal than yourself, was frightened off by the possibility of being nailed for patent infringement. My intention was to make drawing files and print them to .pdf files which work on Windows, Mac and Linux. Then they could be printed off by the end-user onto sticky labels to be used as cut-through and drill-through patterns, then pulled off afterwards. Alternatviely the printed labels could be supplied to the end user. Many printers these days are sufficiently accurate to make 1:1 patterns and it is a method I have already used with my own Agus designs. Two such are Canon BJC-7100 and the excellent Lexmark Optra S1250 and related product family. You may be able to assist your end users by providing patterns to stick onto their existing devices to accurately mark the drillholes. Providing they make accurate pilot holes and use depth stops on the drill bits and maybe a little grease or margarine on the bits to catch the dust and chips, my guess is the average home-builder capable or working to the thickness of a ballpoint pen line should not have a problem. With regard GGs coming apart in transit, I suggest you might examine using two adhesives, one a soft silicone to dampen vibration, to be laid along outer edges and the main fixer being UV curable adhesive where there is face contact between the gg and the frame. No doubt you have already thought of it but here it is anyway. After making your gg's, if they are glass, dress the outer edges to smooth off the pits and chips and chamfer the edge corners. This should eliminate some stress risers which might otherwise contribute to the glass cracking. I have used common water clean-up white bathroom sealer for fixing the disk to hub - not relevent in your application - and pin spots of Loctite 358 UV curing adhesive. Should you decide to alter your design to glueing your two prisms together, the Loctite should also work. Just a few thoughts.

December 20th, 2005, 06:47 AM	#46
Leo Mandy Major Player Join Date: Dec 2004 Posts: 749	Ok, makes sense. Thanks Quyen. Is the drilling going to be a delicate operation, possibly screwing up the device? I am pretty handy, but I don't wnat to chance something if I decide to go for it!

December 20th, 2005, 12:53 PM	#47
Jelle Poupaert New Boot Join Date: Aug 2005 Posts: 13	Just a thougth, and I might be wrong, but for users with a limited budget, won't buying an LCD screen to watch the flipped image in the end be a cheaper solution? I've seen 6" LCD screens on ebay for $100-150...

December 21st, 2005, 09:55 AM	#52
Greg Bates Regular Crew Join Date: Jul 2003 Posts: 186	Gimme the light loss, and if its too bad throw in a Beattie screen. But to for go flipping in post i'll make sure I have adequate lighting.

December 21st, 2005, 11:26 AM	#53
Ken Lamug Regular Crew Join Date: Dec 2005 Posts: 45	Can't wait until Quyen comes out with a flipped letus in a single barrel.

December 21st, 2005, 01:10 PM	#54
Dennis Wood Major Player Join Date: Mar 2005 Location: Ontario, Canada Posts: 916	Greg, I don't think a moving Beattie would work due to the fresnel lens built into it. You need the diffusion part of the screen minus the fresnel treatment.

December 21st, 2005, 04:51 PM	#55
Greg Bates Regular Crew Join Date: Jul 2003 Posts: 186	aahhh....yeaahhh...good point:)

December 21st, 2005, 08:45 PM	#56
Maheel Perera Regular Crew Join Date: Sep 2003 Location: Sri Lanka Posts: 128	Quyen "With the image flipping the light loss is 1.5 stops" Was the complete unit loses 1.5 stops, or the flipping part only, loses that much of light.

December 22nd, 2005, 06:49 AM	#59
Leo Mandy Major Player Join Date: Dec 2004 Posts: 749	Well put Bob, bravo

December 26th, 2005, 06:00 AM	#60
Michael Maier Trustee Join Date: Apr 2005 Posts: 1,269	Has anybody got their new Letus35 with flipping feature and have any comments on the image and built quality? Does it still have the problem with dust and specs coming from the cheap plastic parts? Is it still made on plastic parts inside? How is the image quality with the prism system, any noticeable extra distortion and aberrations? It would be great to see some footage.