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Author Topic: What 39 Mp back to choose ?  (Read 12426 times)
jecxz
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« Reply #20 on: June 08, 2008, 12:06:37 PM »
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Yes landscape or climbing  from 28mm to 300mm (in MF) (same as what  I am doing with 35mm gear from 20mm to 200mm).
But I am most of the time in high altitude environment, with cold and sometime windy/snowy wheather so I need a versatile and strong system.
My Canon 1DsIII is very good but I need very good files for big enlargment; up to 150 cm wide sometime.
Sometime I stitch 4 or 5 pictures to get a large file but it is not every time possible (photography from a helicopter for example).
So if the 39mp Hasselblad as some troubles in very cold conditions, what about a Mamiya AFD II + P45 + Mamiya 28mm (and some other lens) combination ?
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Jeff,

I have used my H3DII39 in 15F degrees, I just had to bring many extra batteries. I have used my H2 system (sames lenses, just film back) in as cold as -19F - only problem was my hands.

Remember also, right now the H3DII39 is limited to a max 32 second exposure. Since switching from Canon in 2005 to an H2 system (film), and recently to the H3DII39, I have not touched my Canon gear at all. Rent the systems and get a feel for them is the best advice. Good luck.
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abiggs
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« Reply #21 on: June 08, 2008, 01:41:27 PM »
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If cold weather is your requirement, I would definitely stay away from Leaf. I have had a few friends use them in cold landscape situations, and both stopped working around 32F or slightly above. Apparently the feedback from Leaf was that they don't guarantee the unit working beneath something like 40F.

I have used a Phase One back in very very cold conditions, like 20F, and it worked like a charm. Heck, even the battery worked for a few hours.
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Mitchell Baum
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« Reply #22 on: June 08, 2008, 01:52:10 PM »
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Does anyone have experience with Sinar in cold conditions?

Thanks,

Mitchell
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snickgrr
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« Reply #23 on: June 08, 2008, 01:54:46 PM »
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The Leaf specs say operating range down to 32F.

 I've personally shot with mine at about 13F or so and it worked great.  And this wasn't a come out of a warm environment and shoot in the cold for a few minutes but an extended backpacking trip into the mountains mostly in the 11,000' to 13,000' range. Battery life was a problem.  After every shot I would take off the battery and keep it in a pocket next to my body.  Slept with them in the sleeping bag at night.

I'm not recommending it for that type of work but citing one personal experience.

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If cold weather is your requirement, I would definitely stay away from Leaf. I have had a few friends use them in cold landscape situations, and both stopped working around 32F or slightly above. Apparently the feedback from Leaf was that they don't guarantee the unit working beneath something like 40F.

I have used a Phase One back in very very cold conditions, like 20F, and it worked like a charm. Heck, even the battery worked for a few hours.
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« Last Edit: June 08, 2008, 01:55:29 PM by snickgrr » Logged
Graham Mitchell
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« Reply #24 on: June 08, 2008, 03:09:42 PM »
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Does anyone have experience with Sinar in cold conditions?

Thanks,

Mitchell
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I've used mine in -15'C (5'F) without any problems.
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yaya
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« Reply #25 on: June 08, 2008, 03:13:48 PM »
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If cold weather is your requirement, I would definitely stay away from Leaf. I have had a few friends use them in cold landscape situations, and both stopped working around 32F or slightly above. Apparently the feedback from Leaf was that they don't guarantee the unit working beneath something like 40F.

The spec of many (most?) electronic devices will state 32F (0c) as the lower operation limit, usually due to one or some of the components being limited by its manufacturer.

Optimum working temperature for most if not all Li-ion, NiCad and NiMh batteries is 15-20 C

I worked with Aptus (and previously Valeo) backs at 5F to 120F with no issues. battery drainage in cold weather is not unusual with digital cameras.

No I haven't tried liquid Nitrogen nor Pizza baking. I think the sticker on most batteries says "do not expose to high temperature" or something like that, no?

Yair
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Mitchell Baum
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« Reply #26 on: June 08, 2008, 03:32:56 PM »
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Thanks Graham.

Glad to hear it. I've used my M8 in -5 F with 25 knots wind. No problem with the camera. Fingers another matter.

Best,

Mitchell
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thsinar
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« Reply #27 on: June 08, 2008, 11:35:50 PM »
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I have to second Yair's words below.

I have used "my" various Sinarbacks as well below -10C (14F): believe me, you worry first about your fingers and your batteries, before having to deal with the back not working under such conditions.

Thierry

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The spec of many (most?) electronic devices will state 32F (0c) as the lower operation limit, usually due to one or some of the components being limited by its manufacturer.

Yair
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MarkKay
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« Reply #28 on: June 09, 2008, 12:46:47 AM »
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I used my Leaf in mid winter in the Colorado rockies.  I was outside the vehicle for probably  35 or 40 minutes. It was extremely cold.  Cold enough my BH-55 tripod head froze.  The back worked flawlessly

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If cold weather is your requirement, I would definitely stay away from Leaf. I have had a few friends use them in cold landscape situations, and both stopped working around 32F or slightly above. Apparently the feedback from Leaf was that they don't guarantee the unit working beneath something like 40F.

I have used a Phase One back in very very cold conditions, like 20F, and it worked like a charm. Heck, even the battery worked for a few hours.
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juicy
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« Reply #29 on: June 09, 2008, 07:13:39 PM »
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Fantastic images Jeff!

The goulotte Perroux on Tacul looks pretty thin.

Cheers,
J
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bradleygibson
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« Reply #30 on: June 10, 2008, 12:20:22 AM »
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Does anyone have experience with Sinar in cold conditions?

Thanks,

Mitchell
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Photo © Derek Jensen

Yours truly, two days ago on Mount Rainier in Washington.  Photo taken at 2619m, with a Hasselblad H2 and a Sinar eMotion75LV.  Over the duration of the hike I took about 135 shots.  (Only the last 100-200m of climbing were in sunshine, everything else was, well, like this:

Total of 10 hours in the elements, battery still registered 'full' when we got back to the cars.

-Brad
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bradleygibson
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« Reply #31 on: June 10, 2008, 12:28:06 AM »
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Does anyone have experience with Sinar in cold conditions?

Thanks,

Mitchell
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Yours truly, two days ago on Mount Rainier in Washington, USA.


Best regards,
-Brad
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Gigi
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« Reply #32 on: June 10, 2008, 04:07:43 AM »
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Yours truly, two days ago on Mount Rainier in Washington, USA.
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Thanks for the shots.  I remember doing that hike some years ago. And yes, its brutal. Congrats on the hike and the camera. Makes shooting models in Australia look like vacation time.
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Geoff
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« Reply #33 on: June 10, 2008, 09:09:07 AM »
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Hmmm...  A little "vacation time" sounds really nice, actually!!    

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Thanks for the shots.  I remember doing that hike some years ago. And yes, its brutal. Congrats on the hike and the camera. Makes shooting models in Australia look like vacation time.
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Ignatz_Mouse
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« Reply #34 on: June 10, 2008, 10:06:13 AM »
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Frankly if extreme versatility and robustness is what you want nothing can beat the Canon. Many Canon guys have the Zeiss Distagon 21mm lens which outresolves any wide  made by Canon, and there are also some interesting Leica lenses which can be adapted to Canon.
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If he really wants to go wide the problem here with the Leica glass is that lenses like the Super-Elmarit-R 15 or the Elmarit-R 19 won't work with the 1DsMkIII due to mirror clearance issues.
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clawery
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« Reply #35 on: June 10, 2008, 11:21:12 AM »
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Take a look at Phase One's web site. They have several videos of just how rugged their backs are. In one the place it in dry ice and then pull it out, place a battery in it..and then start it up with no problems.  www.phaseone.com

Chris Lawery
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James R Russell
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« Reply #36 on: June 10, 2008, 11:31:50 AM »
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Take a look at Phase One's web site. They have several videos of just how rugged their backs are. In one the place it in dry ice and then pull it out, place a battery in it..and then start it up with no problems.  www.phaseone.com

Chris Lawery
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I hate to say it but that video is funny.  I keep waiting for one of the SNL regulars to finish the video by sticking their tounge on the back and getting it stuck.

My favorite Phase video is the  one where the photographer leaves the back on the top of his car and drives off, letting the back rumble down the street.

That's the guy I'm going to hire for my next shoot.  

Really next time Phase should be a little more realistic about what really goes on in a shoot.  Hire you know who, the famous equipment thrower and let her toss it across the room while the assistants try to reassemble the parts.

That's realism at it's finest.



JR
« Last Edit: June 10, 2008, 11:33:54 AM by James R Russell » Logged

Mitchell Baum
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« Reply #37 on: June 10, 2008, 12:34:55 PM »
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Thanks Bradley,

That's impressive and reassuring. I may use mine, if I get it, as cold, but probably not as high.

I really like the second shot.

Best,

Mitchell
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lance_schad
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« Reply #38 on: June 10, 2008, 01:48:49 PM »
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For extended cold weather operations the Phase One works very well as Chris mentioned and JR made the funny comment about SNL they do hold up to extremes.

I have found that on the Mamiya 645AFDxxx body you can actually purchase a battery pack that has an extension cable that plugs into the bottom of the body allowing you to keep the batteries inside your coat and heated for extended use.

Also a few years ago PhaseOne had their "portable solution" prior to the P-series , where they had a belt that held a sony vaio and two batteries with an inline 1394 connector. Again this could be worn under your coat and hold two batteries to power your P-series back . This part is discontinued but I still think I may have one laying around somewhere in my closet if anyone is interested.

Lance Schad
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mtomalty
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« Reply #39 on: June 10, 2008, 01:59:24 PM »
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If he really wants to go wide the problem here with the Leica glass is that lenses like the Super-Elmarit-R 15 or the Elmarit-R 19 won't work with the 1DsMkIII due to mirror clearance issues.


Is the 1Ds3 different that the 1Ds2 with respect to mirror clearances?

I know,for certain,that the 19mm can function with a slight modification (voiding warranty!!)
and I'm pretty sure I've seen threads that illustrate that the 15mm is workable,as well


Mark
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