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New Hasselblad XH 0.8 Lens Adapter

tcdeveau

Well-known member
Got an email today about a new XH adapter for the X1D/X1D II/907x.

According to Hasselblad marketing materials, reduces focal length of HC/HCD lenses by a factor of 0.8, improves max aperture by 2/3 of a stop, and increases contrast and sharpness. Same caveats regarding AF that apply with HC/HCD lenses and current XH adapter also appear to apply to this one.

Cost: $949 USD

more info:https://www.hasselblad.com/x-system...il&utm_term=0_16f5cb481a-b190a5afb3-349948921
 

bcambern

Member
That's the first time I've ever heard of an adapter/converter actually increasing sharpness. Looking forward to hearing some test results...
 

edouard

Member
Nice!

Could this then be used in conjunction with the "CF Lens Adapter for the H System" TO fit V lenses AND use their leaf shutter (the basic XV adapter only allows sensor e-shutter) ?
('would love to get a 66 f/2.2 from a Zeiss CF 80mm f/2.8)

I think I've asked ~same but for XH adaptor + "CF Lens Adapter" over hasselbladdigitalforum, 2 people said that it just does not work :cautious: (too bad as hasselblad doesn't provide a real/full XV adapter allowing shutter cocking/control, which is something that should not be impossibly complex to do, and they've already done it for the H system)


+ have you noticed
"Additionally, the X1D-50c must be updated with firmware 1.25.0 or later and the X1D II 50C, 907X 50C and 907X Special Edition cameras must all be updated with firmware 1.4.0 or later."

A typo or there will soon be a new firmware - 1.25.0 - for the X1D-50c (i) ? (Hasselblad only lists 1.24.0 as latest)
 
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elm

Member
HB has finally realized that going back to the modular design, i.e. 907x 50c, they can open up their eco-system to tie their H, V and X systems together and allow their end users enjoy their legacy and wealth of lenses and accessories!
 

usm

Member
A little bit off topic, but is it that the v lenses on the 907x are not using their leaf shutter?
I always thought that’s the reason fo create the 907x.
 

anyone

Well-known member
A little bit off topic, but is it that the v lenses on the 907x are not using their leaf shutter?
I always thought that’s the reason fo create the 907x.
Electronic shutter only - I guess most people would just attach the back to their V-body instead, and use the 907x only for X-lenses.
 

tcdeveau

Well-known member
A little bit off topic, but is it that the v lenses on the 907x are not using their leaf shutter?
I always thought that’s the reason fo create the 907x.
The 907x is talked about as if it's one entity, but the 907x consists of the 907x body (X-mount) and CFVII back. When using the 907x/CFVII combination, one has to use the existing XV adapter to adapt the V-lenses to the 907x body and use the electronic shutter of the CFVII back. The XV adapter is a "dumb" adapter that doesn't control the shutter in the V lenses, only allows for mounting of the lens to the body.

By mounting the CFVII back on a V-system body, you get use of the shutter in the V-lenses.

The novelty to me of the 907x (907x/CFVII) is that it is an updated CFV50 back (with electronic shutter, better live view, two card slots, and an integrated battery over the original CFV-50c) that can be used on tech cams and V-series bodies (with full use of V-system lenses and their shutters), and that also comes with a smart adapter that allows for the use of XCD lenses with the back (the 907x "body").
 

mristuccia

Active member
That's the first time I've ever heard of an adapter/converter actually increasing sharpness. Looking forward to hearing some test results...
A focal reducer will "compress" a wide projected image circle into a smaller one.
The results of the compression are
  • increased light (therefore the gain in f-stop)
  • Increased MTF (the lens circle of confusion becomes smaller, not sure whether this is the correct terminology)
  • Re-gain (almost) of the original lens FOV and DOF
Usually there also are negative effects, like more aberrations on the image corners, with a consequent loss in sharpness, and sometimes more distortion.

There are many focal lenses reducers already on the market. Many of them are used to adapt/compress FF lenses' projected image circle for, as ab example, APS-C sensors. An example is the Mitakon Lens Turbo II.
There are very few of them in the MF world as far as I know. Metabones makes an interesting (and pricey) focal reducer for adapting V lenses on Fuji GFX bodies that allows using the real FOV of the V lenses (almost), the real DOF and F-stops.
That's the only reason why I'm considering getting a GFX-50r instead of an X1D. I have a lot of V lenses...
Now it seems I'd have a kinda potential solution for the X1D as well... 😊
 
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fjablo

Member
Interesting! Looking at the MTF curves for the HC 80mm it seems the new adapter introduces more separation between sagittal and tangential curves - quite strongly actually towards the corners. If I remember correctly that's astigmatism? Would be interesting to see how that translates to real-world performance.
 

citizin

Member
As someone with a great kit of H glass this is pretty intriguing concept. It's be fun to test out, but it's still not worth the switch over for me.
 
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