[LargeFormat] 480 Apo Nikkor Cell Spacing Question

[Michael Sullivan]

Dear List,

Since people are showing off some recent photos, I thought I'd add mine.
Linked here 
(http://www.haywood-sullivan.com/photography/IR-land/index.html) are two 
images I took yesterday (Sunday) morning in Marshfield Massachusetts USA 
around 8am.
It was about -2 deg F when I went out.

My setup:
Linhof Kardan Standard (4x5)
Gitzo Carbon Fibre tripod
IBM Thinkpad laptop (soon to be replaced with a G4 Powebook)
BetterLight Super 6k2 digital back (6000x8000 pixels)
24v lead-acid battery for above
Kodak Wratten A red filter
Schneider Super Symmar HM 120mm
Rodenstock Sironar-N 210mm

Both images were deliberately shot without the normal infrared blocking 
filter.
In order to block out most of the blue, I used a Wratten A red filter.
As such, there was a red/cyan cast to the captured image -- sky was red, 
foliage was cyan.
Due to the intense IR sensitivity of this chip, both test images were shot 
at f45 -- even with the red filter!
(it is clear I will need to invest in a set of ND filters asap)
Total capture time was approx 3 minutes.
File size was approx 137mb.

Images were then brought into Photoshop and the Red hue was made blue and 
the cyan hue was made orange, giving the false color infrared results you 
see here.

NOTE: I was planning on comparing images shot with a Heliopan 092 (an 
almost black filter) but my fingers were freezing and I needed to get back 
into the van! As I understand it, the 092 would render an almost black and 
white image, which I'm not sure I'd like.

Anyway, I'm pretty pleased with the surreal look I was after.
Yet I also wanted to avoid the stereotypical "infrared" look so common 
these days.

Thoughts? Comments?

J Michael Sullivan