Letus35 Extreme vignetting
- Thread starter myCharlie
- Start date
Okay, I'm just about ready to give up on this thing. Does anyone have an EX1 with letus35 adapter can show me the exact settings that will work? Essami as been kind in showing me the settings on his Cannon but I've tried zooming in from 0 to 99 and all the aperture settings on the camera lens but none has generated a vignetting free image.
One last thing I'm going to try is shooting at a different location see if there is any difference.
I have not recieved any response from Aaron.
One last thing I'm going to try is shooting at a different location see if there is any difference.
I have not recieved any response from Aaron.
http://www.kholi.net/M42LetusEX.mov
HVX200 + Letus EX + Letus M42 Screw Mount (Finally came today).
Lenses are in order:
Vivitar 28mm F2.8
Vivitar 35mm F2.8
Zeiss Jenna 50mm F2.8 Close-Focusing
Vivitar 90mm F2.5 VMC
Vivitar 200mm F3.4
HVX Settings-
IRIS: Open
SHUTTER: 180.0d
ZOOM: 27.3
FOCUS: 5.25/.38 (Lives on the border)
Just me messing around with the M42 mount, nothing special, but you can see there's no vignetting what-so-ever here. Haven't touched the footage other than to compress it to 480 16:9 for your viewing.
HVX200 + Letus EX + Letus M42 Screw Mount (Finally came today).
Lenses are in order:
Vivitar 28mm F2.8
Vivitar 35mm F2.8
Zeiss Jenna 50mm F2.8 Close-Focusing
Vivitar 90mm F2.5 VMC
Vivitar 200mm F3.4
HVX Settings-
IRIS: Open
SHUTTER: 180.0d
ZOOM: 27.3
FOCUS: 5.25/.38 (Lives on the border)
Just me messing around with the M42 mount, nothing special, but you can see there's no vignetting what-so-ever here. Haven't touched the footage other than to compress it to 480 16:9 for your viewing.
Luis Caffesse
Admin
This may sound like a stupid queston - but have you tried checking for vignetting without the adapter? Are you certain the lens on the EX is fine?
I don't think it is (of course I have not specifically look for it yet), but I'll definitely going to check for it tonight since I've read posts that meantioned about problems with the Sony EX1 lens of those shipped earlier and mine was the second batch of those early cameras from Sony.
If mine could have that kind of vignetting free, it would be nice. I couldn't get mine to get rid of the vignetting at all. I hope to experiement mine tonight (hopefully some of the fog here will lift) so I can do some test shooting.
Thanks for sharing.
Luis Caffesse
Admin
I'd love to get an update on this one.
Did you have a chance to test the EX1 by itself?
Did you have a chance to test the EX1 by itself?
Okay, here's the scoop.
Here are the pictures with just the EX1 camera lens.
Pic1
Pic2
And here are the pictures with the Letus35 adapter and Nikkor 180mm f2.8 lens on.
Pic3
Pic4
Pic5
Let me know what everyone think. At this point, it seems to me that the vignetting may have come from the camera lens and not the Letus35 adapter. However, I'm very new to these things so your honest opinions are much appreciated. If in fact it is the camera lens, will someone tell me where and how do I contact Sony to have this lens problem corrected?
Here are the pictures with just the EX1 camera lens.
Pic1
Pic2
And here are the pictures with the Letus35 adapter and Nikkor 180mm f2.8 lens on.
Pic3
Pic4
Pic5
Let me know what everyone think. At this point, it seems to me that the vignetting may have come from the camera lens and not the Letus35 adapter. However, I'm very new to these things so your honest opinions are much appreciated. If in fact it is the camera lens, will someone tell me where and how do I contact Sony to have this lens problem corrected?
bill totolo
Veteran
Pic 3 and 4 appear to go out of focus toward the right side of the frame. I would think the lens vs. GG are out of alignment.
Anybody else?
Anybody else?
It looks to me that the vignetting from pic3, pic4, and pic5 have the similar shadows as pic1, and pic2 which was taken without the Letus35 adapter on. So it seems more and more like a camera lens problem....but I'll need all your opinions so I can make case to Sony to fix my camera.
puredrifting
Major Contributor
You guys haven't hard about the EX-1 vignetting issue? There was a huge thread somewhere on about half a dozen people who were seeing this on their newly delivered EX-1s. I cannot recall if it was here on this website or on DVInfo or ??
Contact your dealer, Sony is recalling these and either repairing or replacing them.
Dan
Contact your dealer, Sony is recalling these and either repairing or replacing them.
Dan
Lenilenapi
Carbonite Member
Your straight EX-1 pics look like it could be a particularely bad case of the vignetting issue that has been found on some EX-1's . Try turning on the steady shot and see if that makes it worse, that is a dead giveaway. Is it happening worst in the middle of the zoom range? that would be typical also.
This is a recall and repair issue that Sony recognizes.
Look on DVInfonet as there is a long thread with all the numbers to call, posted examples as well as a a sticky from Sony.
Its hard to tell if there is also a problem with your Letus. that would indeed be a bad case of double bad luck. I hope its just the EX .
I think my Letus is offset on the only EX-1 I've looked at but it seemed to be fine when zoomed in ( as it is on the HVX) I'll get a chance to look more in a few days.
- Lenny Levy
This is a recall and repair issue that Sony recognizes.
Look on DVInfonet as there is a long thread with all the numbers to call, posted examples as well as a a sticky from Sony.
Its hard to tell if there is also a problem with your Letus. that would indeed be a bad case of double bad luck. I hope its just the EX .
I think my Letus is offset on the only EX-1 I've looked at but it seemed to be fine when zoomed in ( as it is on the HVX) I'll get a chance to look more in a few days.
- Lenny Levy