MTF 1/3" Nikon "G" Adapter

[Robert Rogoz]

Matt, there were some links to online videos and a couple of discussions on the subject in the past. Just search the site, there were some promos from some resort promo shots with Nikon lenses- looked really nice. There are some Nikon lenses (like 80-200 F2.8, 50 F1.8 and 28 F2.8) that no Fuji lens will ever be able to compete- period. Remember, you also are using the best part of the lens due to the cropping.

[Alex Humphrey]

Originally Posted by Steve Phillipps

Now that's another interesting optical kettle of fish, it should start to deteriorate in sharpness past about f5.6 due to diffraction, and on a 1/3" chip f11 is well well below the diffraction limit. One conclusion to draw from this is that the lens is a real dog, and is so bad at the lower apertures that it looks better at f11 despite the massive diffraction problems.
Steve

yup.. Fujinon should have made it 5.5-60mm and then the stock 16x would have been just fine. at 80-88mm if one where making the mistake (such as me before I tested it) and thinking that the sweet spot on the 16x was f4 through out the entire focal length.... it isn't. Below are the f4 and f11 shots. f4 at 88mm is pretty much useless, center is in focus, edges are out of focus... so dropping the aperture to f11 or f16 it keeps the edges in focus at the expense of contrast and over all sharpness.... but it's still better.


http://www.dvinfo.net/conf/attachmen...ens-88mmf4.jpg

http://www.dvinfo.net/conf/attachmen...ns-88mmf11.jpg

So in this regard I expect a 80-200 Nikkor ED/D or even a Nikon E would be far superior in the 80-90mm range than the stock lens at 88mm. I would like someone to post a test of their 17x at full tele for fun.

[Alex Humphrey]

Originally Posted by Matt Lehman

Gentlemen (and ladies), the current thread is extremely interesting but I just wish no one would continue to point out the downfalls of my HD100 :)

Does anyone have footage, shots, stills, etc from this MTF adapter for the GY-HD series? I'm extremely curious about it and would love to have some advice about the adapter itself and the lens they have used with it.

Thanks!
Matt

Here are a couple pics from another user (Mike? Steve? Paul? South Bay area (Nor-Cal) who was selling his MTF last I spoke to him a year ago...)

The Heron is with a MTF & Nikkor 80-200 and it looks about 200mm. The second pic is from a Fujinon 17x. No idea of focal length or aperture, but looks like it's near it's max and I could only guess on the aperture... probably near f11 I'm guessing.... oh and obviously click on the image to see the full size. Saved as jpg at 60% so the original footage looks slightly better.. not enough to worry about though.

[Alex Humphrey]

Originally Posted by Stefan Immler

Try this one that I have just created:

http://giganova.com/Misc/test_chart.pdf (PDF, 2MB)
http://giganova.com/Misc/test_chart.tif (high-res TIF, 32MB)

It's not a scientific test charts but should do the job.

KILLER! I thought I was trick with my page of periods.. :)

[Stefan Immler]

I received the Nikon --> 1/3" JVC bayonet adapter today and tested it. Overall, the craftsmanship is top notch. Backfocus is perfect, and the lens sits tight inside the adapter which fits perfectly into the bayonet of the JVC. No wiggling, not too tight, just perfect.

Then I put a Nikon 75-300mm 4.5-5.6 lens on it. I couldn't believe how perfect the lens works. Look for yourself and inspect the screen shots below.

The 1st image is the Fujinon stock lens at 5.5mm (wide), f/5.6
The 2nd image is the Fujinon stock lens at 88mm (tele), f/5.6
The 3rd image is the Nikon at 75mm, f/5.6
The 4th image is the Nikon at 300mm, f/5.6

Overall, the Nikon gives perfectly sharp images over the entire field, well suited for HD. Even at 300mm, there is little chromatic aberration.

The Fujinon at tele (88mm) and the Nikon at 75mm have almost the exact same field of view. The Nikon is perfectly sharper across the entire field and lacks CA completely. In contrast, the Fujinon is not sharp across the entire field and has a lot of CA, making this lens useless at that range.

In short: The Nikon lens easily outperforms the Fujinon lens. Keep in mind that the Nikon costs only $150.- and it's not even a Nikon ED glass!

Also, look at the gigantic zoom range that I have now (images 1 through 4)!

http://giganova.com/Misc/Fujinon_5.5mm.jpg
http://giganova.com/Misc/Fujinon_88mm.jpg
http://giganova.com/Misc/Nikon_75mm.jpg
http://giganova.com/Misc/Nikon_300mm.jpg

[Brian Standing]

Here's some stuff I posted 8 months ago made with a JVC HD100, MTF adaptor and a Nikkor 80-200mm lens:
In the Tallgrass Prairie on Vimeo

The encoding is fairly dreadful, but I think you can get the idea.

[Tom Koveleskie]

Very interesting thread. Could this MTF adapter be used as a relay adapter for DOF adapters? I see that you use it for 35mm lens. Just wondering if it could replace having to string a DOF adapter to the front of the stock Fujinon lens of the HD110. Any thoughts would be greatly appreciated.