Yes I'm afraid I have another adaptor.

If it's for nikon, what about one of these?

http://www.fotodiox.com/shop/product_info.php?products_id=309

here's the text from the site:

Macro Extension Tube Set for Nikon F;Ai;AIs;AF Digital
[05MAC5NF] $19.95



Warranty: 12 Months



Macro extension tube is wonderful substitution to expensive macro lenses. It maintains original optical while transform the lens into a macro lens. It is far more desired then the add-on close-up lenses, which will alter the optical quality. The extension tube will work with all Nikon cameras, digital or film, i.e., D1x, D2x, D1h, D2h, D100, D70, D70s, D50, Fuji S1/2/3, Nikon F6/5/4/3/2, F100, N90s, N80, N70, FM-2n, FM, FG-20, FG…

This tube set included a lens-coupling ring and a body-coupling ring; three optional tubes are also included for desired magnification. Life size image is garmented with this set up. See details specification at the table below. Specs are based on 50mm f1.4 lens.
 
j said:
If it's for nikon, what about one of these?

http://www.fotodiox.com/shop/product_info.php?products_id=309

Macro extension tube is wonderful substitution to expensive macro lenses. It maintains original optical while transform the lens into a macro lens.
Click to expand...


not sure i understand this if you were responding to my last post. i just need a mount for nikon f mount lenses. this looks like it makes a non macro lens act as a macro. right?
 
I was just looking through some info for the DVD and thought I would post these since the topic of lens mounts is in the air.

Nikon F mount
http://en.wikipedia.org/wiki/Nikon_F-mount

http://www.mir.com.my/rb/photography/hardwares/nikonfmount/index.htm

Canon FD mount
http://en.wikipedia.org/wiki/Canon_FD

Pentax K mount
http://en.wikipedia.org/wiki/Pentax_K_mount

As for the nikon F mount. Here is what I know:

The F mount has a seperate circular piece of "springy" metal that rests in the underside of the actual mount. This piece is necessary for the lens to fit snugly against the mount. You can just barely see the circular piece sticking out in the image below (yellow arrow). The lens presses up against these areas when it is turned into place. They act like springs to keep tension on the lens and keep it tight against the mount. You will have to cut out some notches in the end of your adapter to make room for these since they stick out past the actual F mount.

nikon5.jpg


One issue with the F mount is that the device that locks the lens to the camera is part of the camera (or extesion barrel) and not the lens. So using just the F mount and the circular piece mentioned above will keep the lens snug, but alone will not actually lock the lens into place. The bottom yellow arrow below shows the small pin that comes up from the camera and through the mount to lock the lens. When you push the button on the camera (top arrow) the pin drops down and the lens can be removed.

This thread might explain the circular spring piece a little better:
http://www.dvinfo.net/conf/archive/index.php/t-62256.html


nikon6.jpg


So one option is to secure something like the item in the top image to the front of your adapter and adjust your GG to accommodate the extra distance. Doing it this way will allow the lens to lock into place.

The other option is to just use the mount and the circular piece. The lens will be snug and shouldn't come loose, but it will not be locked into place. I have not tested it, but this could be a problem with some follow focus devices depending on how easily the focus turns on the lens.

This item from B&H looks like it has the locking pin and no extra barrel to worry about. I will be ordering one, but I have no clue yet how it will work.

http://www.bhphotovideo.com/bnh/controller/home?A=details&Q=&is=USA&O=productlist&sku=366996

With a Canon FD mount (and maybe other Canon mounts), the button that locks and unlocks the lens is part of the lens and not the camera. The FD mount is a single piece that can just be screwed onto the front of the adapter. The lens locks in nice and tight.

Hope that helps. Keep in mind that I don't have a ton of experience with 35mm lenses, so please chime in if any of you can give some more info.
 
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thanks to snodart for that information, and j for posting that device. it may be what i end up going for.

This item from B&H looks like it has the locking pin and no extra barrel to worry about. I will be ordering one, but I have no clue yet how it will work.
Click to expand...

I found what appears to be the same item here snodart.

http://www.nikonmall.com/product.asp?sku=2597535&deptcatid=&searchcat=&searc

No picture, but I believe it's the same thing. I've sent them an email to verify. And it looks like they have some in stock.
 
hey just to share,

here are some new pics i posted in the god hand post of my setup

enjoy

70-200mmzoomfig.jpg

50mmfig.jpg


the varizoom monitor have an internal flip switch
 
Hey guys....

something really freaking weird happened to today.....i worked so hard on getting a Nikon D screen spiffy clean........i cleaned it and cleaned it and it was spotless....

So I sealed air tight in between twon UV filters and glued it all together with Super Glue. I checked it one more time and it was a beauty...spotless.

Now here is the weird part.....next day I came to take a look at the screen and the whole screen had a NASTY gaze...looked as if i had scratched it with sand paper. Also the two UV filters had the same nasty gaze. I had topry it open and all three components are damaged....the UV filter coating is all gone....WEIRD.

I have been scratching my head trying tofigure out what happen!

Any ideas? Could it be that there were some fumes that were realeased inside the whole covering and messed it up?
 
ouch, sorry to hear about that. As soon as I read "superglue" I cringed. This is why I suggested using silicone or RTV sealant. Its strong enough to keep the UVs together and dust out, AND still flexible enough to seperate if you need to get at your GG screen.

Phally- I am so gealous of your LCD screen!! I want one badly but need to save for a lighting kit. And the fig-riggish stabilizer is a good idea, see folks- look how far PVC goes! Its no longer just for carrying your turds away! :)
 
Hey Ed

Thanks man, I had a Lcd for my playstation 2 that i used for a while, but it was not as professional, plus i had to hang the lcd screen upside down so the image will flip.

I was shopping for a new LCD and was looking at ikan, 100 dollars but only 2.5". so one day i tumbled onto an ebay listing for an lcd screen. I won it for only 24 dollars and when it came in I was shocked because it was almost brand new. The seller was a first time seller so people weren't trusting his auctions. But I took a chance and I won the varizoom. I was pretty shocked. The seller also had a portable green screen, i should had bid on that too. When i went back to check on the screen, it went for 30 dollars.

Daym only if i had more money.
 
yell.jpg

what a minute what a minute what a minute what a minute what a minute- you won a varizoom lcd for twenty fo...oh mercy somebody catch me...
 
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Hey everyone, I have big plans to make a 35mm adapter (AKA EGPRO35 XL) Anyway I am attempting to make this adapter without needing the 20x relay lens on the xl2. I didnt want to make an image flip becasue i should be using an external monitor anyway and the less optics the image has to go through the better the quality in the end. My question is with a c-mount adapter i bought for my pentax-k lenses similiar to the following. http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=116733&is=REG&addedTroughType=searchThe c-mount end is significantly narrower than the back of the 35mm lens does this matter (it pretty much looks like it is made for 1/3" ccds? I have heard of people using c-mount lens adapter to mount their lenses but i never realized c-mount=1/3" Should i just take off the c-mount end (it can be unscrewed) or does it not matter. I am ssuming the narrowing of that opening will act as if my lens is stopped down. Am i right?
 
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ahhh c-mount!!!!

i thought also of making an adapotr to use c-mounts but the problem with c mounts are thier flange distance. i think it is 16mm which is too short. c mount lens are cheap but that flange distance might be a problem.

opps correction

c mount flange is 17.5mm
 
phally said:
ahhh c-mount!!!!

i thought also of making an adapotr to use c-mounts but the problem with c mounts are thier flange distance. i think it is 16mm which is too short. c mount lens are cheap but that flange distance might be a problem.

opps correction

c mount flange is 17.5mm
Click to expand...

Wait...so why is too short a problem? I am just confused about these mounts in general. are they made for 1/3" sensors I have seen 1/2" ccds that accept c-mount why is this? the end of the c-mount adapter looks smaller than a 1/2" ccd

If I have an adapter to hook up my 35mm lenses to a c-mount does that make my 35mm lens a c-mount lens where it has to be 17.5 from the sensor

Oh! I get it nw never mind
 
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yea it is possible to make a DOF adaptor using c-mount lens. But the distance from ground glass/focus screen to the c- mount has to be 17.5 for proper focus at infinity.

much luck
 
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