My Stenocactus

beetleman · Post by **beetleman** » Tue Mar 20, 2007 4:51 am

Here is a picture of my Stenocactus (thanks for the ID Irwin). Irwin posted a picture of his cactus in bloom a few posts back http://www.photomacrography.net/forum/v ... php?t=2067
So that gave me the idea to capture mine. The one I have has longer spines (1.25"-longest one) than Irwins so I am not sure if it is the exact same type. The cactus is 5" high and 2.5" in diameter. The second picture is a stack of 12 images with helicon Focus. No beautiful flower like Irwins

Ex. 1/2.5
F/7.1
ISO100

Bruce Williams · Post by **Bruce Williams** » Tue Mar 20, 2007 5:08 am

A nice couple of pics Doug showing both the unusual plant body and that dangerous looking, blade-like spination.

Helicon Focus appears to have done a good job with the stacking as I couldn't spot any artifacts or soft areas.

Bruce

beetleman · Post by **beetleman** » Tue Mar 20, 2007 5:19 am

Thank you Bruce . the only thing I see in the stack is a halo on the far left large spine which I saw and forgot to edit out

cactuspic · Post by **cactuspic** » Tue Mar 20, 2007 5:58 am

Wonderful shots Doug. The litghting gives it a good sense of depth and emphasiss the spines.

If I had to guess, I would pick crispa as the species. But as Dave has indicated, this is a genus in which seems particularly screwed up and in which the individual members show tremendous variation.

The focus stacking worked very well, as Bruce noted. Have you used the Combine stacking program?

Irwin

beetleman · Post by **beetleman** » Tue Mar 20, 2007 7:20 am

Thanks Irwin, No I have never used CombineZ, I just jumped into using HF first. Thank you for the possible species ID. I didn`t even know the family name until you posted your picture.

cactuspic · Post by **cactuspic** » Tue Mar 20, 2007 7:44 pm

Hi Doug. I had a chance to look it up in my books and found that I should not rely on my memory for spelling. The species name is crispatus.

Irwin