Choice: P25 or P30?

Questions, comments and suggestions regarding Phase One P+ series and P series digital camera backs.

Postby Chris1111 » Wed May 17, 2006 2:56 pm

Andy,

I'm not sure where you are located, but we at Capture Integration have rentals of P25 and P30s. Either give us a call at (404)522-7662 or e-mail us at chris@captureintegration.com

Thanks,
Chris
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Postby damienlovegrove » Wed May 17, 2006 10:19 pm

I found the P30 better at recording chroma in the shadows and about 1 stop more sensitive. The shots from the P30 and P25 showed similar detail despite the difference in pixel count.

What I'm waiting for is a P35 (guessing) large chip to preserve my wide angle shooting with 6.9 micron pixels, dual readout and microlenses for extra sensitivity. My P25 is fine until such a back exists. If someone offered a straight swap of P30 for my P25 I'd do it - just. I think the value of the two backs is the same.

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P25 or P30

Postby NN216903UL » Thu May 18, 2006 12:55 pm

As far as i know Effective Image Area of ccd counts alot than megapixels (for me.)
And P25 having more Image circle than P30 counts alot. As far as fashion is concerned or any Hoarding U can deffinetly count on P25. That does not mean P30 wont handle anything, it surely can do the same but with less image area to grasp. Medium Format is all about bigger image area and for your fashion work u wont be needing more than 22 megapixels thats more than enough. As for color rendering is concerned they (P series) are from the same family but with minor changes to all. I,ve not tested P30 but can garentee u it will work flawless because i,ve used most of the Digital Backs of Phase One H5 H 20 H25 P25 and the latest P-45 on my Hasselblad 503CW /FlexBody and 905SWC currently i,ve got H25 and P45 and both are great.
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Re:

Postby ajmichael » Mon May 22, 2006 11:51 am

clawery wrote:Andy,

I'm not sure where you are located, but we at Capture Integration have rentals of P25 and P30s. Either give us a call at (404)522-7662 or e-mail us at chris@captureintegration.com

Thanks,
Chris


Thanks Chris, but I'm in the UK! :(
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Postby damienlovegrove » Thu Jul 06, 2006 11:36 pm

I'm currently considering a swap from P25 to P30 just for the useable 800 iso and the speed increase in shooting. The inconvenience of larger file sizes for no resolution increase together with a smaller CCD are the two drawbacks that spring to mind.

I have a loaner at the moment and I'm getting attached to it already. I'm shooting fashion tomorrow, a wedding on Saturday and I'll have shot about 1000 frames by Tuesday with all the H1 lenses. I'll see how the new crop affects my shooting style. To be honest I'm expecting to like it, Just like I did with my first dslr 6 years ago. I rarely need all the 35mm lens's image so I'm happy to have the crop. My 210 will be more like a 250 :-)

I've read about the P30 being soft. I think the smoothness of tone and lack of noise is causing this apparent softness. I did an extensive side by side comparison today at 400 ISO and I recon the P30 gives a more pleasing look but you have to switch off the noise supression to get all the detail.

I'm not sure which back is the most expensive the P30 or the P25. I think if I was starting from scratch I'd go P30. If the P45 had microlenses it would be my choice.

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Postby Gary32 » Fri Jul 14, 2006 2:33 pm

Michael, you say your objective is very large prints.

I use a P25 with Hasselblad V outfit and a Linhof M679 outfit, and I also use a Canon 1Ds MkII.

I find the results from the Phase One back are marginally better than the Canon, but the advantage is more qualitative and subjective (for example smoother gradations) rather than a material difference in resolution that would allow significantly bigger print sizes. For the kind of print sizes you're talking about I'd generally stitch two P25 shots together, although as an architectural photographer using a slding carriage on a Linhof I appreciate it's both easy and practical to do, where as for fashion that's hardly the case1

If your main objective is very large print sizes then you may be disapointed in the relatively small practical difference between a P25 and a Canon 1Ds MkII. If your objective was to use extreme movements with a technical camera, or take advantage of the unique properties of the Hasselblad 903 SWC Biogon lens, or simply enjoy waist level viewing with the wonderful Hasselblad Acute Matte screens then I'd suggest the move to a P25 would make sense. But if you're motivated purely by print dimensions then you may be better waiting for refurbished P45 backs to arrive on the market.
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Postby imom » Fri Jul 14, 2006 4:25 pm

Maybe this will help to compare. This is a 'to scale' comparison of IMAGE SIZES, not sensor sizes. You can see why the P25 is not a big jump from the 1Ds2 when it comes to maximum print size.

Image
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Postby damienlovegrove » Mon Jul 17, 2006 8:47 pm

I did a fashion shoot with a 1dsmk2 last week and I was amazed at how poor the processed image was compared to my P25. I loved the auto focus at the time of shooting -very cool, it lit up like a Christmas tree and was very fast. However it was when I processed the images I realised the focus zones were a bit of a lottery. All in all it was a competent camera but a bit heavier than my H1 and with a much darker and smaller viewfinder. The P25 is a class above the Canon in terms of overall image quality.

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Postby damienlovegrove » Fri Jul 28, 2006 10:06 pm

The loaned P30 went back yesterday with another 2000 frames on it's counter. My P25 is back on my H1 and I'm glad. I'm glad because I have so much more image in my viewfinder and I have the same amount of detail in my shots. I can live with the noise at 400 on the P25, after all it isn't ugly noise. It's a bit filmic really. I put a 4gb CF card in the back and wow so many more shots available than with the P30.

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Re: Choice: P25 or P30?

Postby NNN636040341365015716 » Wed Apr 12, 2017 6:16 pm

It is an old thread but ........

The P30 Does NOT ISO 50, the P25 does!

Daniel
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