Goko TC-20 problem

[MovieStuff]

<BLOCKQUOTE><font size="1" face="Courier, Arial">quote:</font><HR>Originally posted by digvid:
I have a Regular8 and Super8 Goko TC-20. I agree that the pulsing is due to the nature of the rotating prism.
<HR></BLOCKQUOTE>

Yes, it would seem unlikely that Goko would succeed where Steenbeck had failed. Rotating prisms float, which is why slow motion footage shot with Photosonics rotating prism cameras has that same look.

<BLOCKQUOTE><font size="1" face="Courier, Arial">quote:</font><HR>Originally posted by digvid:

I have heard though that if you use an older tube camera, that the pulsing is not noticable.
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That would actually make perfect sense as these units were engineered when there were nothing but tube cameras with slower response times. I am sure they sort of depended on the "slur" effect that tube cameras bring to an image to smooth things out.

<BLOCKQUOTE><font size="1" face="Courier, Arial">quote:</font><HR>Originally posted by digvid:

Also, if you use a digital video camera and set the shutter speed to half the normal rate, e.g., 1/30 sec for NTSC, 1/25 sec for PAL, then the pulsing disappears also.
<HR></BLOCKQUOTE>

Yes, this would emmulate the "slur" effect of early tube cameras, so that would also make sense.

OT: Hey, Jeff, don't you have SOMEthing you want to share with us all?.....

I got my cigar, homey.

Roger

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Roger Evans
MovieStuff http://www.afterimagephoto.tv/moviestuff.html

[This message has been edited by MovieStuff (edited November 26, 2001).]

[Mikko]

I switched the shutter speed to 25 but it did not help. The image still floats. Damn you Goko!!
So, I transferred the films with the old fashion projector to wall method. Looks terrible but no floating.

Goko TC-20 for sale!

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[Kurt]

I find it really hard to believe that these units were sold if everyone got the jumping effect. I know there are others out there who have gotten some very good results with their TC-20s and you can even view some of these results on line if you do a search.

I don't get this jumping effect with my unit, but I did before I found the right video camera/zoom lens setting. Keep trying.

Kurt

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[digvid]

I have produced some very acceptable results with my Goko. However, it took a combination of slow shutter speed and very precise positioning of the camera to make it happen. I have my Goko mounted on a board with an adjustable camera mount attached that allows me to adjust things by small amounts until alignment is correct. This is still an agonizingly tedious process however, and I hope to replace this setup with a Workprinter, which I think should be much easier to use. IMHO, the Goko is just too hard to use to be practical!

- digvid


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[digvid]

Oh yes...each one of you can consider yourself the recipient of a virtual cigar. On Nov. 18, my wife gave birth to a new baby boy!

- digvid

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