4x5 scanbacks - Any program limits?

[phero66]

Hello,

I have used Helicon Focus on and off for 2 years with a Canon 5D and loved it. Soon I will be using a 4x5 camera with a Betterlight 6E-HS (6000x8000 px) scanback. How would heliconfocus handle such large files?

I also have the option of going medium format with a PhaseOne P30+ but I would perfer to use the scanback.

Thanks,

-John

[Dan Kozub]

We tested Helicon Focus with 70Mp images so you should not have resolution problems. Of course you will need 4Gb of RAM to process such files.

[snickgrr]

BetterLights are what..like 300MB per file? I shoot with an Leaf A75 that produces a 192 MB file and I have not had any problems with this software and a stack of ten files. It takes a few minutes but it hasn't crashed yet. I'm on a Mac.

[phero66]

Ok thanks for the info and Ram requirements!

[Dan Kozub]

We tested big images with 4Gb of memory. You can activate memory saving mode if you have less memory. The more memory you have the faster it works.

300Mb tiff = 50 MPixel at 16 bit per channel, 192Mb = 32 MPixel