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FORUMS Other Digital Cameras Medium Format Digital Cameras and Backs 
Thread started 16 Dec 2014 (Tuesday) 11:19
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Anybody using a Digital back on the Hasselblad V system?

 
Mark1
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Dec 16, 2014 11:19 |  #1

Been debating on getting a digital back for my EL/M or getting a Pentax 645D. Would love to hear some thoughts from users.


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pyrojim
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Dec 16, 2014 13:26 |  #2

It really comes down to: do you want a dedicated studio camera, or a camera you can take outside?


Sure, you can take the Hasselblad V bodies outside, but its not ideal. I personally use a V mount PhaseOne H25 on a Mamiya RZ67. Its a fantastic studio setup...

But boy do I wish I bought a P25 in M mount (v mount would have been OK I guess), So I could actually use the darn thing outside!

The 645D is also quite well weather-sealed...something NO digital back offers. However, tethering options for the 645D are abysmal at best.


I hope that you are not silly enough to waste time worrying about lens sharpness... Medium Format lenses are peerless. Period. Nothing from from the 135 format comes close. :)

So, Inside or Outside?


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bespoke
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Post edited over 3 years ago by bespoke. (2 edits in all)
     
Dec 20, 2014 12:19 |  #3

I am. You have to really love using the V system or be heavily invested in it to consider getting a digital back.

A few of the cons:
-having to use a cable to sync the back thru the lens port. it becomes the weak link and isn't always reliable. i'm always readjusting mine. a CFE lens with the port lock helps.
-not that fun to hand hold for long periods of time because the weight is unbalanced and the camera is quite heavy too (a regular one with film back is a dream to hold)
-it's very difficult to focus with digital. IMO, if you're slightly out of focus with film it looks alright. with digital it looks horrible. there are lots of people that eventually give up on digital on the V system because of this. natural light wide open portraits.. very difficult. i use a 503cw with winder, split prism acute matte d focus screen, waist level viewfinder (4x magnification), and my keeper rate isn't that great and i consider myself a very good manual focuser. shooting for a client i only feel comfortable at smaller apertures

pros: when things are all working well, it's an absolute pleasure to shoot with. and it's beautiful looking.


cons about the pentax system:
-not easy to find good auto-focus lenses for it yet (i don't considering hunting japanese ebay hoping to find a lens that calibrates well with your body as easy)
-crop sensor (may or may not matter to you depending on what you shoot)
-camera is ugly and odd shaped IMO

Otherwise it's a pretty awesome camera. I played around with one for a day and really liked it.

what do you shoot? if i had no equipment and were to do it all over again with a budget within reason i would get a back for the M mount and use a phase one df+. or i'd get the new pentax 645Z. or a used hasselblad h4d50 or 60 (because of their true focus system)


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HKFEVER
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May 22, 2016 02:19 |  #4

My 2 cents from Hassey + CFV-50C :)

IMAGE: http://www.pbase.com/hkfever/image/163275328/large.jpg
IMAGE: http://www.pbase.com/hkfever/image/163069183/large.jpg



  
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rent
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Jul 13, 2016 17:50 |  #5

Just got a CFV-50c for my 503CW. I did some test shots with my 4/40IF and am impressed with the results. Surely it isn't the easiest to use compared to, say, 5DSR, but it sure was fun.

I will post some samples here after playing with it some more.

-alex


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HKFEVER
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Jul 20, 2016 00:52 |  #6

Here is 903SWC + CFV-50C:

IMAGE: http://www.pbase.com/hkfever/image/163705970/large.jpg

IMAGE: http://www.pbase.com/hkfever/image/163705971/large.jpg



  
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Wilt
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Post edited over 2 years ago by Wilt. (3 edits in all)
     
Jul 20, 2016 09:10 |  #7

bespoke wrote in post #17343117 (external link)
cons about the pentax system:
-not easy to find good auto-focus lenses for it yet (i don't considering hunting japanese ebay hoping to find a lens that calibrates well with your body as easy)
-crop sensor (may or may not matter to you depending on what you shoot)
-camera is ugly and odd shaped IMO

The Pentax 645D is 43.8mm x 32.8mm
A digital back for the Hasselblad V is 43.8mm x 32.9

BOTH are 'crop' compared to Hasselblad's 6x6 film frame size, and compared to the 56mm x 43mm frame size of 645 film. But the Hassy is not disadvantaged size wise relative to the 645D.

The 645D is primarily a FP shutter camera. The 645D has some leaf shutter lenses, if you need to shoot with flash to higher synch speed than permitted with FP shutter, but use is hampered compared to non-LS lenses

  • Only M mode shooting
  • No AE lock
  • No Exposure Compensation automated control
  • No mirror lockup
  • No Continuous (1.1 fps) shooting
  • No Exposure Bracketing


The dSLR has spoiled everyone for X-sync speeds, compared to what we had to suffer through with medium format cameras with focal plane shutters...why Hasselblad and Bronica were both the choice of those with heavy flash usage.

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HKFEVER
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Post edited over 2 years ago by HKFEVER. (2 edits in all)
     
Jul 20, 2016 22:55 |  #8

80mm in MF = roughtly 50mm in 135 = around 1.6
Pentax & Hasselblad digital back vs 645 film or 6X6 film = 1.3 corp

So

40mm in MF = 25mm in 135
With only = 33mm in CFV-50c vmad

It is not wide at all vmad




  
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Wilt
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Post edited over 2 years ago by Wilt. (5 edits in all)
     
Jul 21, 2016 09:46 |  #9

HKFEVER wrote in post #18073089 (external link)
80mm in MF = roughtly 50mm in 135 = around 1.6
Pentax & Hasselblad digital back vs 645 film or 6X6 film = 1.3 corp

So

40mm in MF = 25mm in 135
But only = 33mm in 645 or 6X6 vmad

It is not wide at all vmad

Since this calculation disregards the aspect ratio difference of 135 vs. 6x6 vs. 645 medium format, let me offer a slightly different approach to the same comparison... (The short dimension is what determines what fits in the 8" x 10" typical frame on the typical bookshelf or desk, the long dimension is lost from the shot taken with 135 format, why does the diagonal of the longer aspect ratio matter?)

  • 80mm FL is 1.43X the short dimension (56mm) of the 6x6 frame, 40mm is 0.71X short dimension of 6x6 frame
  • 75mm FL is 1.7X the short dimension (42-5-43mm) of the 645 frame, 40mm is 0.94X short dimension of 645 frame
  • 34mm is 1.43X and 40mm is 1.7X the short dimension (24mm) of the 135 frame, and so...

I need to use 17mm or 23mm on 135 to approximate the vertical AOV seen with 645 or 6x6 medium format frames with 40mm lens.

And extending this comparison to the 32.9mm frame height of medium format digital back, I need to use 23mm or 31mm to get same AOV as with medium format film.

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HKFEVER
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Jul 21, 2016 12:25 |  #10

Just did 2 quick stitches:

903SWC + CFV-50C 55" width:

IMAGE: http://www.pbase.com/hkfever/image/163711972/large.jpg

503CW + 80mm + CFV-50C original is 120" width, now is shrinked to 60":
IMAGE: http://www.pbase.com/hkfever/image/163713024/large.jpg



  
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HKFEVER
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Jul 22, 2016 04:45 |  #11

So bored, here is another small version pano, original is over 300mb  :p

IMAGE: http://www.pbase.com/hkfever/image/163717599/large.jpg



  
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HKFEVER
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Jul 22, 2016 08:17 |  #12

So bored, here is a focus stacked 60 files, forgot to clean the dust  :p

IMAGE: http://www.pbase.com/hkfever/image/163718182/large.jpg



  
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ONE30
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May 11, 2017 17:39 |  #13

...found me a digital 30+ back for my 500c/m


IMAGE: http://i1109.photobucket.com/albums/h433/shutter_dreams/x100s/DSCF1343-2_zps0igis2re.jpg


sample photos:


IMAGE: http://i1109.photobucket.com/albums/h433/shutter_dreams/500cm/CF329593-2_zpscazttc1c.jpg


IMAGE: http://i1109.photobucket.com/albums/h433/shutter_dreams/500cm/CF329607-2_zpsbf8mgljz.jpg


IMAGE: http://i1109.photobucket.com/albums/h433/shutter_dreams/500cm/CF329582-2_zpsvuzlzkzp.jpg



  
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Anybody using a Digital back on the Hasselblad V system?
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