Autumn Sunrise

Gallery: LandscapePosted November 28, 2013243 views6 comments

This is the largest panorama I have generated to date using my Gigapan.

This is a 1:4 crop of the original image that consisted of 176 individual images shot at 400mm (EF70-200 w/ 2x converter) and a circular polarizer using Canon 5Diii f8.0, 1/50th sec ISO100. The original image measures 294"x56.7" @300dpi. The cropped version is 226" x 56.5" (67892 x 16963 pixels) If you click on larger version I have cropped out just the summit of Mt Sneffels.

There is a high resolution viewer on my web sight that allows one to view the incredible detail.(Click Purchase button to view. No purchase required. )

Comments

6 comments

Comment posted by Aaron Feinberg on November 29, 2013 at 1:27 AM

Well that's a fair amount of detail... :P

aF

Registered on October 26, 2009, 399 Posts, 2789 Comments

Comment posted by Scott Smorra on November 29, 2013 at 9:46 AM

176 images! That's incredible John! Thanks for posting the image of the summit to show the detail you have in this file. The version on your website looks much better IMO, since the trees at the bottom look much more vibrant. My only nit is with the uneven lightness/darkness in the sky from the polarizer.

Registered on November 2, 2009, 161 Posts, 2143 Comments

Comment posted by John Freeman on November 29, 2013 at 12:59 PM

Scott I agree about the unevenness due to polarizer. I have been on the fence about using polarizer for this kind of shot. I am open to suggestions on that problem.

The overall horz. field of view here is approaching 90 deg. It is hard to get the polarizer set for different angles to the sun over that much rotation. Also, it has been my experience that a polarizer seems to work best when light source is directly in front of or behind you. When shooting at 90 or 270 deg from light source it seems to be less effective. The left end of this panorama is at 90 deg to the sun. The engineer in me has been trying to devise a jig that would rotate the polarizer as the gigapan rotates.

Registered on September 27, 2013, 16 Posts, 33 Comments

Comment posted by Richard Teller on November 29, 2013 at 1:42 PM

Nice pano with lots of detail. The only detail that is a bit distracting is the snow in the lower left corner of the image.

Registered on August 23, 2010, 1162 Posts, 6692 Comments

Comment posted by Harry Lichtman on November 29, 2013 at 4:46 PM

A solution for a smaller image to avoid the sky gradation that has worked for me is to use the polarizer for a shot to eliminate the glare on the trees, then another shot without the polarizer to get the sky. Blend them post processing. A whole different animal with so many images used to make this. Some post processing work to lighten the darker right sky might work, but might be a bit time consuming. A combo desaturation and dodging the sky in that area. My inclination would be to shot the scene without the polarizer, and try and reduce glare and boost contrast/saturation in the tree areas. That might be easier overall and give you the natural look you appear to be after. Cool stuff, more patience than I have

Registered on September 17, 2010, 304 Posts, 3507 Comments

Comment posted by Nick Bristol on November 29, 2013 at 8:00 PM

John, It was really cool looking at the high res viewer on your website. This would have to make an amazing print. I can see the issue with the polarized sky but it doesn't seem as big an issue in your hi-res file. I will say that for me I think the polarizer always seemed more effective at a 90 degree angle to the sun and much less when behind or in front of me. The detail in this image is impressive. Wishing I could see it in a very large print...

Nick Bristol
Lone Rock, WI

Registered on February 1, 2004, 752 Posts, 14140 Comments