Review of Quyen Le's Letus35

Kurt August · September 19th, 2005, 12:58 PM

It looks very good indeed. And yet, color abberation. It's the only bad thing I can say.

Am I expecting too much? Or is this an issue that can be fixed?

Eric Brown · September 19th, 2005, 01:19 PM

[QUOTE=Obin Olson]it's off

It really looks like the gg is not moving fast enough and the camera is "seeing" the grains that are now much larger in size and softer then if the gg motor is off...I don't know how to fix this, would weight on the gg make it better? I have used 4 AA cells on the unit and it's better, but still doing the same thing, and this is somthing you can see at 1/48 shutter...it really shows up on a wall or sky shot, less detail in the image shows the "screendoor" effect...

Obin, this describes my experience down to the last detail. Are you using an XL2, Sony, DVX? Quyen, I will try your suggestions and see if this works.
Thanks!

Ben Winter · September 19th, 2005, 01:28 PM

It's a little too soft and too shallow for my tastes. But delicious footage nonetheless.

Quyen Le · September 19th, 2005, 02:58 PM

Kurt August,

Color abberation can be improved and we are working on this issue.

Eric,

Are you using XL2? what setting are you using? Did you see grain on white walls, the sky, or everything? I will test it myself later this week to see if I get the same thing.

Thanks

Quyen

Eric Brown · September 19th, 2005, 03:19 PM

Hey, Quyen.

Yes, it is the XL2. Settings are:

-3 gain
1/48th shutter
24p
16:9
f1.8

These were intial settings. I've stepped through different f-stops and shutter speeds and the effect remains. I've also tried the OIS on and off and this doesn't change it either.

I'll attempt the loosening of the gg as you suggested and the cleaning and get back with a post sometime today or tomorrow.
Thanks, Quyen.

Obin Olson · September 19th, 2005, 03:37 PM

I am getting MUCH better results with the 4 AA system now..I will post some HD test shots with the reel stream setup

still I think we need to re-think the plastic that holds the GG mount as I think more rubber would allow for the GG to "move" a bit more and really get rid of the "screendoor" effect on this unit, improveing it 1000%!!

Quyen???

maybe use some of the rubber from a CD-ROM mount? it's VERY soft and would allow for more play in the GG ...

Obin Olson · September 19th, 2005, 03:42 PM

BTW I made a rail mount for the unit and it's SO MUCH BETTER , you can touch the lens, focus etc and the thing does not move at all, no image shake in the shots from pulling focus now!

anyone who has the unit NEEDS to do this mod, take it to a professional level.

Quyen Le · September 19th, 2005, 03:51 PM

Obin,

Thank you for your suggestions. I will do all the possibility to get the GG plane to spin faster. Do you have a picture of your rail mount? Thanks.

Quyen

Obin Olson · September 19th, 2005, 04:05 PM

HD test in a min...compressing it now

Quyen, keep in mind that you will be dealing with LOTS of HD cameras soon, every glass element you have in your unit will have some results on teh final image, I know your unit is not that much money, but put the best glass in it you can afford, we will all see the results in HD ;)

Michael Maier · September 19th, 2005, 04:12 PM

Quote:

Originally Posted by Riley Stearns

That looks really good.

Actually I think it looks way too soft. To the point where shots look out of focus.

Quyen Le, could you post a clip shot with the lens stopped down, so the DOF wouldn't be so shallow? Then we can have a better idea of the sharpness of the adapter. As shown in this video, it basicaly not usable for my applications. If you project that, it will look like it's all out of focus. Just not sharp enough.

Obin Olson · September 19th, 2005, 04:12 PM

http:////dv3productions.com/HD_dvx/Q_adapter-1.wmv

anyone have comments?

dvx100a Reel Stream output 1280x720 downsize from teh raw HD frames in aftereffects, basic color work in after effects, shot on a 85mm Nikon Nikkor at f1.4 using 4 AA cells to power the Q adapter and the micro35 achromat, mounted to the Micro35 Rail system with a wood mount to hold the front of the Q adapter on the rails so it's stable

Quyen Le · September 19th, 2005, 04:16 PM

Cannot download your footage, any password?

Wayne Kinney · September 19th, 2005, 04:18 PM

Obin,
What strength macro are you using there?

I cant download your footage, you URL looks odd?

Thanks,
Wayne

Michael Maier · September 19th, 2005, 04:20 PM

Obin, so far this is the best Lestus35 footage I have seen. It may be because it's HD rez, or because you are using the Micro35 achromat lens, which would indicate the Letus35 macro is of lower quality. But even though, it's nothing extraordinary. I think your footage with the realstream and the micro35 DIY looked sharper. Could you post some footage shot outside, maybe some trees, with wide shots and close ups?

Wayne Kinney · September 19th, 2005, 04:27 PM

Ok,
The URL had //// instead of // downloaded now. Footage looks great, nice and sharp. What strength macro are you using with the dvx100a?

Thanks,
Wayne.

September 19th, 2005, 12:58 PM	#91
Kurt August Regular Crew Join Date: Aug 2005 Location: Belgium Posts: 94	Spot. It looks very good indeed. And yet, color abberation. It's the only bad thing I can say. Am I expecting too much? Or is this an issue that can be fixed?

September 19th, 2005, 01:28 PM	#93
Ben Winter Trustee Join Date: Jun 2005 Location: Hollywood, CA Posts: 1,675 Images: 1	It's a little too soft and too shallow for my tastes. But delicious footage nonetheless. __________________ BenWinter.com

September 19th, 2005, 02:58 PM	#94
Quyen Le Major Player Join Date: Jun 2005 Posts: 356	Kurt August, Color abberation can be improved and we are working on this issue. Eric, Are you using XL2? what setting are you using? Did you see grain on white walls, the sky, or everything? I will test it myself later this week to see if I get the same thing. Thanks Quyen __________________ Affordable Adapter http://www.adapterplace.com

September 19th, 2005, 03:51 PM	#98
Quyen Le Major Player Join Date: Jun 2005 Posts: 356	Obin, Thank you for your suggestions. I will do all the possibility to get the GG plane to spin faster. Do you have a picture of your rail mount? Thanks. Quyen __________________ Affordable Adapter http://www.adapterplace.com

September 19th, 2005, 04:16 PM	#102
Quyen Le Major Player Join Date: Jun 2005 Posts: 356	Cannot download your footage, any password? __________________ Affordable Adapter http://www.adapterplace.com

September 19th, 2005, 01:19 PM	#92
Eric Brown Major Player Join Date: Mar 2005 Location: Seattle Posts: 427	[QUOTE=Obin Olson]it's off It really looks like the gg is not moving fast enough and the camera is "seeing" the grains that are now much larger in size and softer then if the gg motor is off...I don't know how to fix this, would weight on the gg make it better? I have used 4 AA cells on the unit and it's better, but still doing the same thing, and this is somthing you can see at 1/48 shutter...it really shows up on a wall or sky shot, less detail in the image shows the "screendoor" effect... Obin, this describes my experience down to the last detail. Are you using an XL2, Sony, DVX? Quyen, I will try your suggestions and see if this works. Thanks!

September 19th, 2005, 03:19 PM	#95
Eric Brown Major Player Join Date: Mar 2005 Location: Seattle Posts: 427	Hey, Quyen. Yes, it is the XL2. Settings are: -3 gain 1/48th shutter 24p 16:9 f1.8 These were intial settings. I've stepped through different f-stops and shutter speeds and the effect remains. I've also tried the OIS on and off and this doesn't change it either. I'll attempt the loosening of the gg as you suggested and the cleaning and get back with a post sometime today or tomorrow. Thanks, Quyen.

September 19th, 2005, 03:37 PM	#96
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	I am getting MUCH better results with the 4 AA system now..I will post some HD test shots with the reel stream setup still I think we need to re-think the plastic that holds the GG mount as I think more rubber would allow for the GG to "move" a bit more and really get rid of the "screendoor" effect on this unit, improveing it 1000%!! Quyen??? maybe use some of the rubber from a CD-ROM mount? it's VERY soft and would allow for more play in the GG ...

September 19th, 2005, 03:42 PM	#97
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	BTW I made a rail mount for the unit and it's SO MUCH BETTER , you can touch the lens, focus etc and the thing does not move at all, no image shake in the shots from pulling focus now! anyone who has the unit NEEDS to do this mod, take it to a professional level.

September 19th, 2005, 04:05 PM	#99
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	HD test in a min...compressing it now Quyen, keep in mind that you will be dealing with LOTS of HD cameras soon, every glass element you have in your unit will have some results on teh final image, I know your unit is not that much money, but put the best glass in it you can afford, we will all see the results in HD ;)

September 19th, 2005, 04:12 PM	#101
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	http:////dv3productions.com/HD_dvx/Q_adapter-1.wmv anyone have comments? dvx100a Reel Stream output 1280x720 downsize from teh raw HD frames in aftereffects, basic color work in after effects, shot on a 85mm Nikon Nikkor at f1.4 using 4 AA cells to power the Q adapter and the micro35 achromat, mounted to the Micro35 Rail system with a wood mount to hold the front of the Q adapter on the rails so it's stable

September 19th, 2005, 04:18 PM	#103
Wayne Kinney Major Player Join Date: Jun 2005 Location: Brighton, East Sussex, UK Posts: 938	Obin, What strength macro are you using there? I cant download your footage, you URL looks odd? Thanks, Wayne

September 19th, 2005, 04:20 PM	#104
Michael Maier Trustee Join Date: Apr 2005 Posts: 1,269	Obin, so far this is the best Lestus35 footage I have seen. It may be because it's HD rez, or because you are using the Micro35 achromat lens, which would indicate the Letus35 macro is of lower quality. But even though, it's nothing extraordinary. I think your footage with the realstream and the micro35 DIY looked sharper. Could you post some footage shot outside, maybe some trees, with wide shots and close ups?

September 19th, 2005, 04:27 PM	#105
Wayne Kinney Major Player Join Date: Jun 2005 Location: Brighton, East Sussex, UK Posts: 938	Ok, The URL had //// instead of // downloaded now. Footage looks great, nice and sharp. What strength macro are you using with the dvx100a? Thanks, Wayne.