Digital xPan - Panasonic S1R in 2:1 ratio

[fetishlens]

Full spectrum conversion + IR Chrome filter

 

[sebastel]

sorry, i'm a bit slow today (maybe not only today ...).
i don't get what you mean by "Full spectrum conversion + IR Chrome filter".
is that a software based process, or is an actual filter in front of the lens involved? or both?
would you please give a bit more details?

the colour and the mood in the pictures speak to me. very nice!

cheers,
sebastian

 

[fetishlens]

Digital cameras have a hot mirror filter attached to sensor to block most UV light. A full spectrum conversion replaces that with a piece of clear optical glass. Mine was done by Lifepixel.

To alter the way the camera handles IR, I use the IR chrome filter from Kolari Vision. When paired with a full spectrum camera it emulates Kodak's Aerochrome film.

 

[shawn]

Nice, a 24mm on the S1R in 65:24 mode is almost exactly the same FOV as the xPan with the 45mm on it.

 

[Archiver]

Nice, a 24mm on the S1R in 65:24 mode is almost exactly the same FOV as the xPan with the 45mm on it.

This is really good to know. I wonder about the depth of field characteristics of xpan photos, does the extra width of the frame affect it? Has anyone taken back to back xpan and 35mm images for comparison?

 

[Retro-Grouch]

This is really good to know. I wonder about the depth of field characteristics of xpan photos, does the extra width of the frame affect it? Has anyone taken back to back xpan and 35mm images for comparison?

I would guess that, with a 65mm length on the long side, the depth of field for any given xPan lens when used in pano format would be essentially the same as that focal length on a 6x4.5 format camera (with a long side of 58mm). Or at least close enough for any difference to be negligible. I've never seen an xPan, or its lenses. Are there dual depth of field scales, or something that represents a middle ground? I always regard depth of field, whether the markings on a lens or in a chart, as a "suggestion", and give a generous bit of extra by using the markings for the next larger stop when attempting to focus at hyperfocal distance.

 

[sebastel]

Digital cameras have a hot mirror filter attached to sensor to block most UV light. A full spectrum conversion replaces that with a piece of clear optical glass. Mine was done by Lifepixel.

To alter the way the camera handles IR, I use the IR chrome filter from Kolari Vision. When paired with a full spectrum camera it emulates Kodak's Aerochrome film.

thanks, I'm clearer now.

 

[shawn]

The xPan with 45mm compared to the 24mm in 65:24 mode is basically 2 stops difference in depth of field.

xPan 45mm at f4 focused at 10 feet has 5'10.8" of total DOF. The 24mm in 36x13.333 (the 65:24 crop) at f2 focused at 10 feet has 5'10.8" total DOF.

This is really good to know. I wonder about the depth of field characteristics of xpan photos, does the extra width of the frame affect it? Has anyone taken back to back xpan and 35mm images for comparison?