mobile photography technology, culture and community
Kendall Helmstetter Gelner

Kendall Helmstetter Gelner

Lives in United States Denver, CO, United States
Works as a Photographic Product Developer
Has a website at
Joined on Dec 30, 2002
About me:

Working on Phototgraphy and Photographic software.

Proud member of the International SIgma Users Group

Kendall Helmstetter Gelner's recent activity

  • Commented on Aspen grove and the moon in the December magic night challenge

    Really like this image, I loved how the shape of the moonlight echoed the shapes of the trees...

  • Commented on Mystical - Enchanted Valley in the Mystical challenge

    Great image, would not have thought you could get such good light out of even a full moon with such a short exposure at that ISO/aperture... very inspiring.

    Especially love how visible the...

  • Which I happily do not block, because I can click on them or not as I see fit and I like to support the site...  It's not like they have got nothing over those many years as I have looked at, and ...
  • I was traversing the forums as I do - all of the sudden tonight the whole screen goes black, with one tiny ad in the middle of the screen and a "continue to" link on the top right... ...
  • Sad to see no mention whatsoever of the Sigma DP-1, one of the first large-sensor compacts that showed other camera makers there was a viable market and a value to that kind of camera.

  • Today I received a PM with a lengthy add for the DXO film pack. At the end it said if I didn't want to receive ads like that, I should make sure the "promotions" setting is unchecked. Well, it is ...
  • Oh yeah, the ghosting is just terrible:

    Oh wait, that's the Zeiss Otus...

  • You can also see that even here if you load up the comparison between this lens and the Zeiss. You can see the difference in contrast even when the image is reduced in size.

  • @Boky, the beauty of the Sigma lens is that you can use the USB dock to adjust micro-focus just for that lens! So then you can have TWO properly focusing lenses on your Canon body. :-)

  • In that particular image, you have a lot of vertical lines. The Zeiss does exactly the same thing when encountering a busy background and sometimes just adds lines...

  • You can see that too in the comparison shots. If you load up the comparison between the Sigma and the Zeiss Otis, the graph says that they start out the same sharpness in the center and the Sigma...

  • In what way "poor"? If you compare agains the Zeiss Otis it has slightly *less* vignetting! Some lens types simply have a bit of vignetting.

Activity older than 12 months is not displayed.
Total messages 5
Threads started 2
Last post 5 months ago
Total comments 78
Total likes 105
Last post 3 months ago
Total reviews 0
Entries 11
Votes cast 79
Last entry Dec 10, 2010
Photos uploaded 7
Last upload Dec 10, 2010
About us