Guy Mancuso
Administrator, Instructor
BTW I loved that 47mm XL Schneider Doug is talking about. Maybe the best focal length to have on the FF sensors.
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Does the term FISH OR CUT BAIT apply here?My idea would be:
- for 2 lenses: 43mm xl (if I need wider, I will stitch)
- 120mm (also stitch if needed)
For 3 lens combo:
- 43, 120, 210
Comments?
Actually my latest calculation (keeping this all in a spreadsheet, prices, weight of individual components etc) adds up to 58K++And btw where did we get 55 k. I think 42k for a back, must have added the Alpa gear.
Wow, huge difference in weight for 120 and 210 compared to what I thought they were! Thanks!Doug's advice is excellent as always. I would just add that you can download the Alpa calculator (here) and do these calculations yourself.
I think the weight numbers you mention must be without lens mount/board or maybe shutter. The 120mm Digitar is about 600g in Alpa mount, the 210mm about 1kg. The 47mmXL is 370g and 43mmXL 382g.
I've chosen the 47mmXL and 100mm Digitars on an Alpa.
Cheers, -Peter
Schneider 43mm XL, 47mm XL or 120mm would fit three horizontal IQ180 frames stacked vertically (for a tall vertical pano strip). It would also fit three vertical IQ180 images stacked horizontally (for a wide landscape pano) but it would require 30mm of movement of shift left/right to do the wide-pano which only a few of the tech cameras have.
Doug Peterson
My Sinar P3 has plenty of movement, even more than the standard P3, as I converted it from a P2.BTW I loved that 47mm XL Schneider Doug is talking about. Maybe the best focal length to have on the FF sensors.
Schneider 43mm XL, 47mm XL or 120mm would fit three horizontal IQ180 frames stacked vertically (for a tall vertical pano strip). It would also fit three vertical IQ180 images stacked horizontally (for a wide landscape pano) but it would require 30mm of movement of shift left/right to do the wide-pano which only a few of the tech cameras have.
Doug Peterson (e-mail Me)
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Good question Ed! I too am wondering whether one can just use the shift ability of the Arca rm3di to stitch or whether a sliding back is needed to do it.Pardon the interruption but which technical cameras allow enough movement to use the full image circle of the 47XL?
Thanks,
Ed
My Alpa Max had enough rise to go as far as I felt was correctable in sw for image fall off with the 47 APO-Digitar & P40+. At 25mm there was enough fall off that was corrected by LCC in C1 Pro to have noticable noise. For those extremes I'd consider using a center grad vs software correction even on a Dalsa sensor.Pardon the interruption but which technical cameras allow enough movement to use the full image circle of the 47XL?
Thanks,
Ed
Hi Mal, I had a chance to have lunch at Picnic Point during my visit to OZ. The area in and around Toowoomba is beautiful. Hopefully next time it won't rain (hard) the whole time I'm there.Jim2
I have recently purchased a 645DF with a P65+ back with an automatic upgrade to the IQ160 when they arrive. Why have I chosed this option?
Figured much like you that a MF system would enhance my enjoyment in capturing the finer details of life and ever since I went to Art School, have enjoyed creating larger images. Also I purchased a Cambo Wide DS with a 35mm lens at the same time to use with the P65+ back. Sort of the money I saved by not going to the IQ180 price point just for the camera.
What have I found?
Well at present I am struggling to fully realise the benefit of 60MP over my Canon 5D or 1DMk4. I am happy to use Mirror Up, cable operated shutter or time delay, tripod and such. However I have taken nearly 200 exposures and still working on getting all my technical and creative ducks in a row. I have not found it a free lunch - but I am learning heaps and the struggle is doing no harm.
Seems to me the experienced MF users on this forum are doing lots of small things right which are adding up to great results for their images. I have seen many of your images and I feel sure you would not be wasting your money BUT - BUT it does seem to take some time to master the many small intrusions into the creative process that can result in a "promising but unachieved image".
Cheers from Mal
Toowoomba
Well
Thanks for the example Graham, sorry I missed the response until now.My Alpa Max had enough rise to go as far as I felt was correctable in sw for image fall off with the 47 APO-Digitar & P40+. At 25mm there was enough fall off that was corrected by LCC in C1 Pro to have noticable noise. For those extremes I'd consider using a center grad vs software correction even on a Dalsa sensor.
This is an example of full rise/fall & P40+ & 47 (btw, I should have used more rise vs tilting to avoid the keystoning but that's another story ...). The software correction of drop off is visible at the extreme top/bottom with associated noise :
http://grahamwelland.com/MultnomahFallsIce/index.htm
Thanks Steven for your feedback.Mal,
curious, what lenses are you using with your DF?
P65+ back very demanding on lenses, technique, and focus is critical.
have you tried your cambo wide with your 35? those results should be outstanding.
If you are not getting the iq you had hoped from your DF, you may have some alignment issue and or bad samples lenses. For the money you sare spending i would be back at your dealerand have it all checked out.
steven
EdHi Mal, I had a chance to have lunch at Picnic Point during my visit to OZ. The area in and around Toowoomba is beautiful. Hopefully next time it won't rain (hard) the whole time I'm there.
I had a difficult time switching from the P45 to P65+ and understand exactly how you feel. When I switched from Canon to P30+ I had immediate improvements in DR, IQ, and resolution (from the first exposure) but the P65+ took a little time.
Enough time that I wondered if I had made a mistake making the upgrade.
The jump to 60MP showed a lot of flaws in both equipment and technique. Glass that worked great with the P45 needed to be calibrated to work at it's best with the P65+. My whole shooting and focusing techniques had to be tweaked as well playing havoc with the creative process. It's difficult to have a creative vision when your head is so consumed by technique.
Hopefully I've learned a little and the IQ180 upgrade will go more smoothly.