Low budget high speed sync

Discussions regarding Phase One 645 AF and Mamiya 645AFDIII Camera

Low budget high speed sync

Postby NNN635145102141699174 » Thu May 01, 2014 2:59 pm

Hi guys,

I just bought a Phase one AF + Phase One 80mm 2.8 + Phase one P21+
I totally love it, so stoked on it. The files are lovely!
When working in the studio everything is fine, but whenever I want to shoot outdoors i want to mix strobes with sunlight when shooting around f2.8. The shutterspeed 1/125 (flash sync) is not fast enough for that.

I spend all my savings into this setup and can't afford an Leaf Shutter lens right now. Are there anyways to get around this?
I know that for some camera/strobe systems the HSS function from Pocket Wizards will get you a flash sync of 1/8000.
Will this also work for my setup? My strobe system is an Elinchrom Ranger.

I don't have to get 1/8000, but 1/500 flash sync will be enough. The rest I'll do with ND filters.

Hope to hear from you guys!
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Re: Low budget high speed sync

Postby NN634711455754701096UL » Sun May 04, 2014 4:17 pm

Hi

You might want to look into getting a Mamiya Sekor 70mm leaf shutter lens. It will sync to 1/500th. They are manual focus though.

Not sure if it will work with your system though.

You can pick them up for around $100 off eBay.
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Re: Low budget high speed sync

Postby NNN635145102141699174 » Wed May 07, 2014 9:35 am

That would be great. Since the viewfinder is big, manual focussing shouldn't be a real big problem.

Can any of the Phase One staff here confirm that it will work on my setup?
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Re: Low budget high speed sync

Postby PhaseoneUser55657 » Wed May 07, 2014 12:40 pm

Hi,
Not sure how it would work. If I recall correctly, the PhaseOne AF and Mamiya AFDIII are the same body just different markings. Though I think they originally promised leaf shutter support I don't think it ever came out. It was supported in the DF from both (new style leaf shutter lenses designed for the DF). On the older m645 leaf lenses, I am not sure how you would trigger the leaf shutter. First you would need an adapter to convert the mount from m645 to the AF mount. Then you need some way to cock the leaf shutter (remember the old lenses were mechanically cocked when you advanced the film) , then you would need to connect the sync port of the lens to the digital back. Then you would need some way to fire shutter.

I don't recall ever hearing of some one doing this, (Could be wrong). I don't even think they make an adapter. I only know that Hasselblad H series camera support going back to old school CF leaf style lenses, and the adapter is so expensive and make the camera look like a franken-camera. It has a lever to manually cock the shutter after every shot, electronics to connect the sync port of the lens to the body. Though everything is still 100% manual.

I hope this helps a little

Robert
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Re: Low budget high speed sync

Postby NNN635145102141699174 » Wed May 07, 2014 6:42 pm

Okay, thanks! So a older non AF lens is a no go..

And I didn't really get the part about the AF and DF model. Are you telling me that even a new version of the Leaf Shutter lens won't work on the AF body, only on the DF body?
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Re: Low budget high speed sync

Postby PhaseoneUser55657 » Wed May 07, 2014 11:14 pm

Ya, that is what I believe that the Leaf lenses will not work with the PhaseOne AF, and Mamiya AFDIII. But double check with your dealer. I recall reading somewhere that it was originally promised, but they came up with the DF instead.

Reading the following thread http://www.luminous-landscape.com/forum ... 800.0.html from about 2010, says that it was promised but the Mamiya AFDIII and PhaseOne AF, but turned out that some hardware contact was missing to allow the use of the LeafShutter lens, so that is why they came out with the DF version, from both Mamiya and PhaseOne.

Robert
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Re: Low budget high speed sync

Postby NN634711455754701096UL » Fri May 09, 2014 1:04 am

Although I haven't done it myself but I read that all you need to do is:

Purchase a dual cable release
The lens is cocked via the lens ring not the camera
You set the focal shutter on the camera to 1/8 and obviously the leaf shutter to whatever you need as long as its faster than 1/8. The 70mm LS has 1/30th up to 1/500th.
Sync the flash from the lens sync port not the camera
The lens also has to be put in manual not auto

http://www.cameramanuals.org/mamiya_pdf ... m_lens.pdf

I have some older m645 lenses that work fine on my P1 645DF+, I used an old 35mm yesterday in fact for a job.

I have been meaning to get a dual cable release .. so I will get one and try it :)

Cheers :)
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