crops from 30 by 38 inch bristlecone snag image file

This is a small crop from an image I posted here last summer after a backpack we did in the White Mountains to a remote ridge outside the Inyo NF Bristlecone Pine Reserve. Note I am not interested in a critique of this image crop, as I am just sharing this for other's amusment as I'd expect it may be of interest to smaller format users and those not familiar with what film and drum scans offer. Although this is a modest demonstration of the considerable resolution one might exact from 4x5, there are other photographers with 8x10, 11x14, and 16x20 view cameras that are even more impressive. This last week I processed four 300mb and two 200mb Tango scan files from my 4x5 Provia transparencies with this image being one of those. The 300mb scan was at a resolution of about 2400ppi that is about the ceiling for Provia. The posted image crop is NOT SHARPENED at all as it is taken directly from my processed .psd master file I will use later this week to directly create the profiled .tif Lightjet5000 print file. The full web image that the following describes is at this link along with a couple more similar crops:

http://www.davidsenesac.com/images/print_06-y4-4.html

A few minutes before the sun had risen, a friend and I had set up and taken shots higher on the hill that weren't worth much because a small cloud at the horizon due east blocked the early red light. We then hurredly came down the hill and first set up our 4x5 view cameras a bit closer than at this position in order to fill the frame of the prominant snag at left fully in our 150mm lenses. I did take a shot of that. Friend had already moved back to this position which I thought maybe wasn't as good as the previous shot. The light at this point was maybe 15 minutes after sunrise so just middlin warm yellow here in the clear dry air at well over 10,000 feet.

After the trip both of us concluded the second position made for a better graphic. In my processing I did use the Edit...Transform...Skew function to help straighten up the verticality of the tall snag. My Gitzo G-1325 gets up as high as I can stand but even with max shift movement, my lens was pointed upward enough that I had to consider getting back a bit more than optimal in order to straighten it out a bit later on my computer.

At typical monitor dot pitch of a bit less than 100 RGB pixels per inch this 9144 by 11582 pixel file would require a 90x108 inch monitor to display. Of course this huge magnification is beyond the 4x5 transparency resolution, so the small crop here does not appear sharp. Just note where the small crops are on the above image to consider scale. The smaller modestly sharpened images to the right of these full crops are approximate sizes that will appear on the actual print at 30x38 inches though only are using 1/3 of the data bits the Lightjet will use. The difference being the Lightjet5000 lasers incrementally expose tiny dots on the Fuji Crystal Archive media at 304.8 dots per inch or three times the typical monitor pitch of a bit less than 100 dpi. Note the second crop is from a section of the large foreground log a bit left of bottom center.

These crops will just be on my image page briefly until I write up an image text description like on my other image pages. Two of the crops though are used on this page via the "view image crop" link that is on all my pages in order to provide some indication of detail. ...David

Pretty cool. I'd like to see a sharpened crop too, with an arrow pointing to the spot on the full-sized print. That is, put up a full-sized shot 800 pixels wide, then an 800-pixel-wide crop of some tiny area inside it.