Re: MF digital backs. The dilemma

Moderated by: guardian

Visit the FM Store · Image Upload · Buy & Sell
FM Forum Rules

FM Forums | Alternative Gear & Lenses | Join Image Upload

1 2 3 … 19

21 end

Archive 2006 · Re: MF digital backs. The dilemma

gogopix
Offline
Image Upload: On

p.20 #1 · Re: MF digital backs. The dilemma

Dear Andy
I have tried several hasselblad lenses (V Zeiss) using the P25 and my Contax and I am well pleased. The 30mm if you can find can produce really special results
The 100 and the 180 are some of the sharpest lenses.
The Zeiss contax are great but you cannot use on the V. But you can use Hassey on Contax (actually auto meters correctly for a stop down. It just doest record correctly. And the auto focus becomes a confirmation. No special items needed since on Contax the autoexposure and autofocus (as confirmation of course) seem to just work regardless the lens . even the Hartbleis work.
Since Contax bodies are cheap and lenses are in same or better class, you coud go that route too.
I wish that Phase had made the P25 with flexible replaceable mounts rather than dedicated, but either H V series or contax seem to be greatwith the P25. I suspect as you say, it is the Zeiss lenses that work so well.

regards
Victor

Jun 19, 2006 at 02:18 PM

EZepeda
Offline
Image Upload: Off

p.20 #2 · Re: MF digital backs. The dilemma

I've had some interesting conversations with the Fotocare and Calumet guys, where basically it comes down to "good glass is good glass" regardless of the capture medium. While I would love an H series or Contax, the T-Blad is holding its own quite well for what I do. Now for that Cambo wide...

Jun 19, 2006 at 04:00 PM

gogopix
Offline
Image Upload: On

p.20 #3 · Re: MF digital backs. The dilemma

push

Jun 19, 2006 at 05:38 PM

Andi Dietrich
Offline
Buy and Sell: On

p.20 #4 · Re: MF digital backs. The dilemma

Did someone buy the Reichman DVD with his mfdb tests?

Jun 19, 2006 at 11:16 PM

gogopix
Offline
Image Upload: On

p.20 #5 · Re: MF digital backs. The dilemma

i did
still waiting for it!
Let you know when I have
regards
Victor

Jun 20, 2006 at 12:15 AM

woodyspedden
Offline
Image Upload: On

p.20 #6 · Re: MF digital backs. The dilemma

gogopix wrote:
i did
still waiting for it!
Let you know when I have
regards
Victor

I am waiting also. They claim they have shipped it but I have not seen it yet. Will give as good a report as I can as soon as I see it.

Woody

Jun 20, 2006 at 01:25 AM

ajmichael
Offline
Image Upload: Off

p.20 #7 · Re: MF digital backs. The dilemma

Greg_E wrote:
[What?

Are you saying that using the P45 for a pinhole camera wouldn't produce good results?

Was that a Zeiss pinhole?

Andy

Jun 20, 2006 at 08:43 AM

gogopix
Offline
Image Upload: On

p.20 #8 · Re: MF digital backs. The dilemma

OK the LL megapixel CD came. Unfortunately the exposures and settings were all over the map (flask color space for a daylight setting??

Anyway here is an H1 25 vs 45 comparison.
Both 50 ISO, f8 1/4s

I adjusted saturation and ncontrast and tried best on wWB.

On size, the 45 is actually about at 73-74%. That's it guys, NOT a big difference linear. However, MR says look at the files.

With all that caveat, here is a side by side for the 25 and 45
you can see a difference, but how much?

Jun 23, 2006 at 02:58 PM

gogopix
Offline
Image Upload: On

p.20 #9 · Re: MF digital backs. The dilemma

of course advantage of 45MP is SIZE

here are the 100% crop comparison

Jun 23, 2006 at 03:09 PM

ajmichael
Offline
Image Upload: Off

p.20 #10 · Re: MF digital backs. The dilemma

gogopix wrote:
With all that caveat, here is a side by side for the 25 and 45
you can see a difference, but how much?

Twice the price but not twice as good, methinks?

Have you had the chance to do any P25 vs P30 comparisons?

Andy

Jun 26, 2006 at 10:09 AM

gogopix
Offline
Image Upload: On

p.20 #11 · Re: MF digital backs. The dilemma

Someone asked about the 25and 30
here is the matched size' (that is, resolution for a fixed fov)

Jun 26, 2006 at 07:28 PM

gogopix
Offline
Image Upload: On

p.20 #12 · Re: MF digital backs. The dilemma

And here is what you get in terms of magnification for 100% crop (which of course isnt necessarilysame resolution due to some differences

Now 25 isISO 50 while MR did only ISO 100 for P30
all are h1 120 lens 1/4 and 1/8 sec resp and f8

[Note I do NOt believe the last test, uprezing the 25 is reasonable, but I will show it soon. Peaople who up rez are not looking for ultimate detail but satisfying demands of client. So means compromise de facto]

Jun 26, 2006 at 07:42 PM

gogopix
Offline
Image Upload: On

p.20 #13 · Re: MF digital backs. The dilemma

for those interested in uprez. i actually did a bit over, but still pretty close

to my eye evenuprez seems 'sharper' than 30 but some due to artificial broadening, hence some darkening so maybe 25 looks better.

someone had explanation why 25 could have better resolution than 30, but I forget.

For those of use that pay $30k for P25 now P30 seems agood deal. But still I stay with P25 at least for now

Jun 26, 2006 at 07:43 PM

ajmichael
Offline
Image Upload: Off

p.20 #14 · Re: MF digital backs. The dilemma

Anyone still watching this thread?

Andy

Jul 25, 2006 at 11:51 AM

zaknat
Offline
Image Upload: On

p.20 #15 · Re: MF digital backs. The dilemma

ajmichael wrote:
Anyone still watching this thread?

Andy

Yup. I'll be posting a few shots next week with the Aptus 75/Contax kit but have nothing to compare it to other than the DMR.

David

Jul 25, 2006 at 01:19 PM

Lotusm50
Offline
Image Upload: Off

p.20 #16 · Re: MF digital backs. The dilemma

Apparently you are. ;-)

I also am. (presumably others are as well).

ajmichael wrote:
Anyone still watching this thread?

Andy

Jul 25, 2006 at 01:43 PM

EZepeda
Offline
Image Upload: Off

p.20 #17 · Re: MF digital backs. The dilemma

Still watching...am having a bit of fun freelancing for one client that has a whole Sinar based system, 54e backs and P3 cameras. Don't really like the software though, C1 is still the best in my book.

Jul 25, 2006 at 03:06 PM

netexpress
Offline
Image Upload: On

p.20 #18 · Re: MF digital backs. The dilemma

Ping

Jul 25, 2006 at 07:16 PM

Andi Dietrich
Offline
Buy and Sell: On

p.20 #19 · Re: MF digital backs. The dilemma

this is over for me, I will do film and FB prints. I get the better feeling and feel free not to see instantly what is going on.

Jul 25, 2006 at 07:58 PM

gogopix
Offline
Image Upload: On

p.20 #20 · Re: MF digital backs. The dilemma

Dear David
Looking forward to your Contax/Aptus results For me it is go P45 stay P25 or look at Aptus 65/75. There is a different 'llok' to Leaf (I guess itis the different chips)

Do you ever get to the DC area? We could compare directly. If you were here Iwould try to rent the P45 for weekend (or work a 'loaner' from the P45 sellers.They oud me weekly to upgrade!

regards
Victor

Jul 25, 2006 at 08:40 PM

Doug Dolde
Offline
[ X ]

p.20 #21 · Re: MF digital backs. The dilemma

foto-z wrote:
DutchGuy wrote:
Maybe Michel Reichman changed his mind, that can happen.

What did he change his mind about?

His reviews are generally gushing...at least until the next generation comes along. His photographic skills seem to be going down in direct proportion to the big bucks he spends on new gear. I actually liked a lot of his film work but rarely see an image on his site now that moves me.

Obviously he is making a killing with big bucks workshops (more like tour hosting) and DVD's.

Jul 25, 2006 at 11:42 PM

RobertP
Offline
Image Upload: Off

p.20 #22 · Re: MF digital backs. The dilemma

Doug Dolde wrote:
His photographic skills seem to be going down in direct proportion to the big bucks he spends on new gear. I actually liked a lot of his film work but rarely see an image on his site now that moves me.

Obviously he is making a killing with big bucks workshops (more like tour hosting) and DVD's.

I agree. His site is a bit boring now as well. It seemed to be more fun to read a few years ago.

Anyway, on the subject of digital backs, is there anyone using the Mamiya RZ67 with a back? Anyone?.....anyone?

Jul 26, 2006 at 01:19 AM

mark1958
Offline
Image Upload: On

p.20 #23 · Re: MF digital backs. The dilemma

Victor. I come to DC often.. about 5 to 6 times per year. I will let you know next trip.

gogopix wrote:
Dear David
Looking forward to your Contax/Aptus results For me it is go P45 stay P25 or look at Aptus 65/75. There is a different 'llok' to Leaf (I guess itis the different chips)

Do you ever get to the DC area? We could compare directly. If you were here Iwould try to rent the P45 for weekend (or work a 'loaner' from the P45 sellers.They oud me weekly to upgrade!

regards
Victor

Jul 26, 2006 at 05:27 AM

sundstei
Offline
Image Upload: Off

p.20 #24 · Re: MF digital backs. The dilemma

RobertP wrote:

Anyway, on the subject of digital backs, is there anyone using the Mamiya RZ67 with a back? Anyone?.....anyone?

I do, what do you want to know?

Jul 26, 2006 at 09:16 PM

gogopix
Offline
Image Upload: On

p.20 #25 · Re: MF digital backs. The dilemma

Dear Mark
yes please let me know. I am in McLean, not too far out. Do you go to Hopkins or UMd? I do work with both (or at least some of the Med and Pharmacy school staff.)

It would be great to side by side compare the goods. I have a variety of lenses here so you could travel 'light' if that is appropriate to say for for MF

:-)

Victor

Jul 26, 2006 at 09:58 PM


FM Forums \| Alternative Gear & Lenses \| Join Image Upload 1 2 3 … 19 20 21 end