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If you ever intend to use tech cams with tilt/shift movements, particularly with wide angles, know that 80mp backs do not like lenses with a symmetrical design.
Schneider lenses have a symmetrical design, meaning light may exit at a steep angle (depending on focal length) and will cause lots of color shift, sometimes even without any movements. Rodenstock lenses are retro-focus and will work just fine.
The problem? Some Rodies cost 3x or more than a similar lens from Schneider and are also larger and heavier as well, even though performance-wise, they'll be quite similar (not much difference between excellent and amazing ). So you'll have to take lens budget into account... an 80mp system with a few lenses could set you back double for those extra 20mp.
3x is a bit of hyperbole, at least with Cambo and Arca.The problem? Some Rodies cost 3x or more than a similar lens from Schneider and are also larger and heavier as well, even though performance-wise, they'll be quite similar (not much difference between excellent and amazing ). So you'll have to take lens budget into account... an 80mp system with a few lenses could set you back double for those extra 20mp.
Yes, it was hyperbole, shock factor is a better and easier tool to drive a point than giving straight numbers. I don't want to spend half the day looking up spreadsheets and prices. I edited my post for less tin foil content.3x is a bit of hyperbole, at least with Cambo and Arca.
I'm embarking on the mF journey over the next 2 months.
Could someone please explain exactly what are the other considerations here, apart from:
1. 60MP vs 80 MP
2. Long exposures 1hr vs 2mins ?
Many thanks
Saty
My preference would be the IQ260. The best general purpose back on the market. Plenty of horsepower with the least amount of limitations. I owned the IQ160 and loved it and shot the 260 for a week with some pretty long exposures and it was very clean.
FYI shooting in sensor plus at 15mpx is really more like shooting a 24mpx 35cam. Don't let the mpx deter you here. Sensor plus is really darn good
Most likely it will be because of the smaller micron sensor 5.4 compared to the 260 at 6 micron. I have yet to run into though when I had my 160.Guy,is the 80mp back any better at handling fabric's,I heard many people say that the ultra high res mitigates moire,I have a 50mp H back and I do see moire with fine fabric from time to time..
Rob
Most likely it will be because of the smaller micron sensor 5.4 compared to the 260 at 6 micron. I have yet to run into though when I had my 160.
This one is kind of tough since there is no real hard evidence to go by. So if you had to give a edge than the 80 mpx sensors. When I did a moire test a couple years ago you can see it really bad with the P25 Plus at 9 micron, the P45plus at 7.4 I think it is was much better than the P65 it was hardly there at 6 micron. So moire seems to reduce as the microns get smaller.
The difference between the 6 micron and 5.4 would be a much smaller instance if you know what I mean. Lets say if I was a studio shooter and shot textiles all day long than i would be more concerned about it. I also learned that if you take it off critical focus and just stop down you can wipe out any moire. I do that with cockpit display instruments. You get into the nyquist levels it becomes a mess, so I back off a touch but still sharp.
We should also point out here that moire can and will show up in a sensor with a AA filter as well. Reason you don't see it so much and pardon me here but most of the time canon, Nikon with some of there **** lenses could not get to the nyquist level anyway. LOL that was not nice of me but its true.Guy,is the 80mp back any better at handling fabric's,I heard many people say that the ultra high res mitigates moire,I have a 50mp H back and I do see moire with fine fabric from time to time..
Rob
Also for you the H50 is Kodak and the 260 Dalsa you will see some differences in color tone and the Dalsa more neutral in color. I love the Dalsa sensors myself. So you will see some difference , not only that you get all the great functions of a IQ. So bottom line its a good trade for you. I know Capture Integration sells both Hassy and Phase and maybe you can work a trade with them even though your out of country. I don't know how the international stuff works but might be worth a call at least. I can help you if need beI think the smaller micron size really makes the difference,I have a D800E which has 4.17microns (I think) and I rarely ever see Moire,not even with the sharpest Nikon Lens I have (85mm 1.4G at f4),I am guessing smaller microns increases spatial resolution..
I am considering an IQ back in place of my H to use on a H4X body,and the iq260 seems like the best back around right now,just the moire issue is bringing the 80mp into consideration,
Very true,, similar to using the simple method of stopping down to diffraction zone to mitigate moire when using very sharp glass on medium format..We should also point out here that moire can and will show up in a sensor with a AA filter as well. Reason you don't see it so much and pardon me here but most of the time canon, Nikon with some of there **** lenses could not get to the nyquist level anyway. LOL that was not nice of me but its true.
ExactlyVery true,, similar to using the simple method of stopping down to diffraction zone to mitigate moire when using very sharp glass on medium format..
Rob,I think the smaller micron size really makes the difference,I have a D800E which has 4.17microns (I think) and I rarely ever see Moire,not even with the sharpest Nikon Lens I have (85mm 1.4G at f4),I am guessing smaller microns increases spatial resolution..
I am considering an IQ back in place of my H to use on a H4X body,and the iq260 seems like the best back around right now,just the moire issue is bringing the 80mp into consideration,