Any adapter for fujinon tv lens

[jamesjjs]

Was looking at this lens:
FUJINON EAGLE S16x7BRM-18B 1:1.4/7-112mm TV ZOOM LENS

file:///C:/DOCUME%7E1/joe/LOCALS%7E1/Temp/moz-screenshot-5.jpghttp://www.salesbaron.net/f/HHH890.jpg
and was wondering how to use it with GH1? Look at the specs - f1.4, 7-112mm. That's pretty amazing to me!

Can anyone recommend any adapter solution? Also, how will I get the power zoom to work?

I was inspired by another user, "super8" while following this thread http://www.dvxuser.com/V6/showthread.php?t=181478

Thanks!

James

[Chibs]

Do realize it won't cover the sensor format, and adapters currently do not exist. You'd have to fabricate your own. You'd need a seperate power source for the power zoom, perhaps built a battery box underneath the handle.

[jamesjjs]

Yeah, as I searched the web it began to dawn on me the complexity of what I want to achieve with this.

But I think it is worth the effort. Came across this site www.mtfservices.com, and looked at the product page (http://www.mtfservices.com/component/virtuemart/?page=shop.browse&category_id=2)

They have a pretty wide selection, but all the other way round (i.e. Nikon to B4, and not B4 to Nikon)!

I am willing to trade some resolution (I know these lenses are not the sharpest around) for greater light sensitivity, wider angle and a power zoom. Look at how cheap these lenses are second hand.

Also, a client would be mighty impressed with a rig like this.

[msorrels]

Wouldn't their B4 2/3" to C Mount adaptor with a GH1 C mount adaptor work?

[jamesjjs]

Hi msorrels - that's a good question! It cost 240 pounds, plus I guess another 25 pounds for a c to m43 adapter - plus the lens averages about 300 pounds - so that's about 700 pounds, or about USD 1,200 - almost the cost of a new gh1. That's a fair bit of cash to test out if it works.

My fears are the usual issues: vignetting, actual resolution, and crop factor. With a Sony EX3, a b4 lens has a crop factor of 1.375 - what would it be with the GH1? Most likely less as the sensor size is much larger than the EX3.

Appreciate anybody's thoughts on this!

[pix2pixels]

Bare in mind that this lens is designed to work with 3 chip cameras using a prism system. You will need a special adapter to properly project the image in a single plane without any chromatic aberrations.
Also, because the image circle is only 2/3" the adaptors will have to increase it to cover the 21mm diameter of the 4/3 camera. A light loss of at least one stop is to be expected, as well.

[pix2pixels]

Have a look for these adapaters:
http://www.abakus-scientific.com/Format_Converters.htm
http://www.bhphotovideo.com/c/product/580779-REG/Abakus_120_132_Converter_Lens_B4.html#features
or read more in this thread:
http://www.reduser.net/forum/showthread.php?t=20098

[Horncastle]

The "S" in S16x7 denotes that this lens is designed to cover 1/2" sensors. In Fuji language, the 2/3" ENG lenses start with an "A".

[Ben_B]

Hopefully the 2x crop factor would help remove vignetting, etc.

Hey you get that awesome handle on the front, etc. Will that zoom electronically? Freaking awesome if so. I am jealous. I suppose it probably wouldn't though? If it draws power from those contacts to the camera?

[Ben_B]

Let us know if you do it because there's a lot of lenses like this for sale out there and I think they might make awesome additions to this camera.

[jamesjjs]

Hi Ben_b - yes, before I do I will talk to the fujinon people here.... it's a fair bit of cash just to experiment!

And thanks everyone for all the bits of info...

[Illya Friedman]

My fears are the usual issues: vignetting, actual resolution, and crop factor. With a Sony EX3, a b4 lens has a crop factor of 1.375 - what would it be with the GH1? Most likely less as the sensor size is much larger than the EX3.

Appreciate anybody's thoughts on this!

Jamesjjs- your fears are correct. Not to mention you will most likely not be able to use that expensive zoom motor integrated into the lens. As Chibs mentioned- it won't cover the sensor (possibly at every focal length). And the lens was probably set up for a 3 CCD camera, meaning all wavelengths of light are not going to hit the sensor all focused correctly.

You can find some very good and very inexpensive manual Nikkors. Wider are much more expensive, but at least your lenses will be future proof in case you ever choose to upgrade your lens adapter. I'm working on an adapter that will allow the use of Nikkor DX lenses on m4/3. It's much easier to find inexpensive wide angle DX lenses, optical quality is better than most of the ebay/c-mount stuff.

[Shingoshi]

And the lens was probably set up for a 3 CCD camera, meaning all wavelengths of light are not going to hit the sensor all focused correctly.
That single sentence really helped me a lot. I was thinking of doing something similar to this, using broadcast lenses. I actually found this post searching for a "B4 C-mount adapter" on Google. It never occurred to me about the color separation issue. So I'll have to concentrate on single-chip lenses instead. Now, I won't forget it!

Thanks!!!
Shingoshi

[dvbrother]

Ilya,

An adapter to use Nikkor DX lenses would be sweet! Will you be able to control the aperture, or will you need a a Nikon body to set it first?

[Andrew McMillan]

ok first that is a 1/2 lens so it's even smaller that 2/3.

A 2/3 might work. it is similar to 16mm. i've put a 2/3 lens up on a full frame 35mm camera and there is an image, but it only made an image circle that covered about half the of the frame.

but since the gh1's is about half the size it might work .

and with 2/3 '' lenses have an external control. so all you have to do is cut and find the + and - and hook it up to 12 volts. presto zoom.

but if ya experement and at least end up with a cool paper wieght try something like this it's 2/3

http://cgi.ebay.com/Canon-MACRO-TV-ZOOM-lens-9-5-143-mm-J15X9-5B-II_W0QQitemZ400073348119QQcmdZViewItemQQptZLH_Defa ultDomain_0?hash=item5d263ad417&_trksid=p3286.c0.m14

[jamesjjs]

Hi Andrew,

thank you very much - that was helpful

[jamesjjs]

Hi Illya,

yes, I would certainly be interested in a Nikon DX adapter - I have a Nikon Nikkor 50mm f1.2 AIS and it is a fantastic piece of glass - got me hooked on fast glass. Now looking at a Nokton (Cosina Voightlander) 35mm f1.2.... and the Panasonic 20mm f1.7 (a bit slow but what else is there?)

[Ben_B]

Hi Illya,

yes, I would certainly be interested in a Nikon DX adapter - I have a Nikon Nikkor 50mm f1.2 AIS and it is a fantastic piece of glass - got me hooked on fast glass. Now looking at a Nokton (Cosina Voightlander) 35mm f1.2.... and the Panasonic 20mm f1.7 (a bit slow but what else is there?)

That doesn't sound like a DX lens..it's AIS...try the Cieco7 Nikon adapter on Ebay!

[jamesjjs]

Hi Ben,

already have an adapter and using the 50mm f1.2 lens on the gh1 - love the Nikon colors and the dreamy look. So that's why I would be interested in the DX adapter too, as the other Nikon DX lenses are widely available secondhand.

In fact, I got the Nikon 50mm f1.2 to stop me from getting the Nokton 50mm f1.1!