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Forum: GALLERY ONE July 7th, 2014, 11:25 AM
Replies: 14
Views: 2,962
Posted By Bart_van_der_Wolf
Amazing! Looks great. Cheers, Bart

Amazing! Looks great.

Cheers,
Bart
Forum: GALLERY ONE July 7th, 2014, 07:05 AM
Replies: 14
Views: 2,962
Posted By Bart_van_der_Wolf
Hi Nicolas, Also very nice. Romain made good...

Hi Nicolas,

Also very nice. Romain made good use of the limited shooting time, by integrating your high resolution images for the slow pans, and actual video for the 'floating' ingredient effects....
Forum: Art Theory: Idea workshop. April 29th, 2014, 03:21 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Jerome, Did they get a choice? Would they...

Hi Jerome,

Did they get a choice? Would they have appreciated a higher, even more immersive, image quality? Also, Ghislain Simard's work is an example of what well planned shooting can achieve.
...
Forum: Art Theory: Idea workshop. April 24th, 2014, 08:47 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Nicolas, Surely good enough. The question...

Hi Nicolas,

Surely good enough. The question however is, whether you could have gotten even better results (and perhaps faster) by using some different techniques or processing.

While they are...
Forum: Art Theory: Idea workshop. April 23rd, 2014, 04:50 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Asher, No, those are just 400% zoomed in...

Hi Asher,

No, those are just 400% zoomed in crops of a small radius USM sharpened (which will create halo with any radius > 0.3) edge with all levels of pixel neighbor contrast. As those zoomed...
Forum: Art Theory: Idea workshop. April 23rd, 2014, 03:21 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Asher, It's not necessary to keep...

Hi Asher,

It's not necessary to keep shooting test shots for the purpose of sharpening only, unless one just uses the chart as a focus reference. The shift in paradigm for Capture sharpening is...
Forum: Art Theory: Idea workshop. April 22nd, 2014, 11:18 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Asher, Just to make sure, beyond Nyquist...

Hi Asher,

Just to make sure, beyond Nyquist there is only aliasing possible, no real detail exists unless by accident, although the detail close to but beyond Nyquist may be rendered looking a bit...
Forum: Art Theory: Idea workshop. April 22nd, 2014, 03:24 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Doug, That's correct, and a clever trick...

Hi Doug,

That's correct, and a clever trick if we realize that (due to gravity) there are more horizontal/vertical structures than diagonal ones. So assigning the higher resolution to those edges...
Forum: Art Theory: Idea workshop. April 22nd, 2014, 02:46 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Doug, No, you are correct, if we were...

Hi Doug,

No, you are correct, if we were looking at a CGI version of the Sinusoidal grating. However, the image I showed was low-pass prefiltered by the optical system, before it was displayed....
Forum: Art Theory: Idea workshop. April 22nd, 2014, 02:00 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Jerome, Indeed. And the beauty of it is...

Hi Jerome,

Indeed. And the beauty of it is that the target is insensitive to shooting distance, it gives the same results without the requirement for accurate magnification factor calibration or...
Forum: Art Theory: Idea workshop. April 21st, 2014, 11:22 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Jerome, It is a shot of my resolution chart...

Hi Jerome, It is a shot of my resolution chart (http://www.openphotographyforums.com/forums/showthread.php?t=13217) with my TS-E 90mm lens. Given its 144 cycle circumference at any diameter, it...
Forum: Art Theory: Idea workshop. April 21st, 2014, 10:57 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Jerome, No, I'm not really neglecting it....

Hi Jerome,

No, I'm not really neglecting it. The Bayer under-sampling of color has only a minor effect on luminance resolution. In fact, I shot a few test images a few days ago in search of a...
Forum: Art Theory: Idea workshop. April 21st, 2014, 06:53 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Asher, That's a bit pessimistic... ...

Hi Asher,

That's a bit pessimistic...

Simple physics dictates that the 6 micron sensel pitch of the 645D will start to be visibly affected by diffraction at f/6.3 and narrower apertures. At...
Forum: Art Theory: Idea workshop. April 21st, 2014, 06:22 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
To give a bit more of a practical idea about the...

To give a bit more of a practical idea about the effect of diffraction on image quality, here is a small animation which shows the increase of DOF, but also the decrease of mirro-detail contrast and...
Forum: Art Theory: Idea workshop. April 21st, 2014, 06:13 AM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Nicolas, Diffraction is a physical fact...

Hi Nicolas,

Diffraction is a physical fact of life which we cannot avoid. However, it may have just a limited influence, or an influence that can be somewhat reversed by clever post-processing....
Forum: Art Theory: Idea workshop. April 19th, 2014, 06:23 PM
Replies: 77
Views: 11,415
Posted By Bart_van_der_Wolf
Hi Asher, It's a hard question to answer in...

Hi Asher,

It's a hard question to answer in general. It probably boils down to; do we know in advance how our images might need to be repurposed for other sizes than the ones we initially...
Forum: UV/IR Thermal or Xray Photography March 4th, 2014, 01:22 AM
Replies: 5
Views: 2,476
Posted By Bart_van_der_Wolf
Hi Klaus, Congratulations with the new lens,...

Hi Klaus,

Congratulations with the new lens, it's specs looks very interesting and seem to be very useful for your type of imaging. I do wonder about the UV sensitivity in combination with a...
Forum: UV/IR Thermal or Xray Photography October 29th, 2013, 05:42 AM
Replies: 44
Views: 10,800
Posted By Bart_van_der_Wolf
Hi Ben, Just to point out, the new Sony...

Hi Ben,

Just to point out, the new Sony Alpha A7R requires a Metabones version III adapter (http://www.metabones.com/sony/buy-eos-nex-adapter) for "36x24mm full-frame" coverage, not the...
Forum: Local Photography Shoot October 17th, 2013, 06:25 AM
Replies: 4
Views: 2,078
Posted By Bart_van_der_Wolf
Hi Chris, Congratulations, well done. ...

Hi Chris,

Congratulations, well done.

Cheers,
Bart
Forum: UV/IR Thermal or Xray Photography March 8th, 2013, 12:58 PM
Replies: 5
Views: 2,492
Posted By Bart_van_der_Wolf
Hi Asher, Maybe it's the lack of Blue (and...

Hi Asher,

Maybe it's the lack of Blue (and maybe UV) and Green, that's important for pollination, not the remaining Red in our spectrum.

Cheers,
Bart
Forum: UV/IR Thermal or Xray Photography August 27th, 2012, 01:29 AM
Replies: 7
Views: 3,094
Posted By Bart_van_der_Wolf
Hi Maris, I understand, it's hard to beat a...

Hi Maris,

I understand, it's hard to beat a contact print. Nevertheless, a good scan can help for large format output as well.

Cheers,
Bart
Forum: UV/IR Thermal or Xray Photography August 24th, 2012, 01:04 AM
Replies: 7
Views: 3,094
Posted By Bart_van_der_Wolf
Hi Maris, It was worth the suffering, the...

Hi Maris,

It was worth the suffering, the result is a very impressive image. I hope that f/16 was enough for some DOF, because this image deserves to be output at 40 inch or more.

Cheers,
Bart
Forum: Art Theory: Idea workshop. August 13th, 2012, 06:37 PM
Replies: 49
Views: 9,971
Posted By Bart_van_der_Wolf
When it helps to get the message/intent across,...

When it helps to get the message/intent across, craft helps.

Cheers,
Bart
Forum: Art Theory: Idea workshop. August 13th, 2012, 04:39 PM
Replies: 49
Views: 9,971
Posted By Bart_van_der_Wolf
I agree with Mark. Visual Art (as is beauty) is...

I agree with Mark. Visual Art (as is beauty) is in the eye of the beholder. It just needs to be seen, and the venue can add or subtract from the experience.

Cheers,
Bart
Forum: UV/IR Thermal or Xray Photography August 12th, 2012, 07:36 PM
Replies: 6
Views: 3,271
Posted By Bart_van_der_Wolf
Hi Klaus, Maybe dark means good, in insect...

Hi Klaus,

Maybe dark means good, in insect speak...

Cheers,
Bart
Forum: Interactive Artist Showcase May 16th, 2012, 03:02 AM
Replies: 141
Sticky: Exhibition Quality Pictures for Discussion and Questions: Michael A. Smith and Paula Chamlee, Guest Artist Photographers
Views: 51,745
Posted By Bart_van_der_Wolf
Hi Michael, While I agree with getting it as...

Hi Michael,

While I agree with getting it as much right as feasible at the moment of capture, following your strict cropping approach suggests that you only photograph subjects that happen to have...
Forum: Art Theory: Idea workshop. April 16th, 2012, 04:10 AM
Replies: 31
Views: 6,130
Posted By Bart_van_der_Wolf
Hi Tom, The T-shirts usually come after the...

Hi Tom,

The T-shirts usually come after the international breakthrough. You might find some clues on achieving that in this documentary (http://www.imdb.com/title/tt0472210/). I don't know if this...
Forum: Art Theory: Idea workshop. April 16th, 2012, 03:23 AM
Replies: 31
Views: 6,130
Posted By Bart_van_der_Wolf
Hi Tom, For it to be successful, it should...

Hi Tom,

For it to be successful, it should be printed using a special process, e.g. platinum print (http://en.wikipedia.org/wiki/Platinum_print), and a good title also doesn't hurt. How about;...
Forum: Art Theory: Idea workshop. March 24th, 2012, 06:23 PM
Replies: 6
Views: 2,363
Posted By Bart_van_der_Wolf
Hi Tom, No no no, you are being deliberately...

Hi Tom,

No no no, you are being deliberately modest. No need for being that modest (besides, I don't think you are, nore should you ... ;-) ).

Cheers,
Bart
Forum: UV/IR Thermal or Xray Photography March 3rd, 2012, 12:05 PM
Replies: 5
Views: 2,204
Posted By Bart_van_der_Wolf
Hi Klaus, I also enjoyed watching the...

Hi Klaus,

I also enjoyed watching the series. It's always nice to see quality series, like this one from the BBC, that focuses on the history of our planet from one particular perspective, as in...
Forum: Art Theory: Idea workshop. October 15th, 2011, 04:08 AM
Replies: 9
Views: 2,822
Posted By Bart_van_der_Wolf
Hi Asher, It's a slippery slope, don't do it...

Hi Asher,

It's a slippery slope, don't do it unless you have something like this (http://www.thelocal.se/35964/20110905/#) in mind. If you have to, then at least mention the post-processing and...
Forum: UV/IR Thermal or Xray Photography June 21st, 2011, 08:56 AM
Replies: 7
Views: 2,776
Posted By Bart_van_der_Wolf
Hi Klaus, Isn't nature fascinating? How am I...

Hi Klaus,

Isn't nature fascinating? How am I to read the interior's yellow on your UV scale? Is it a more saturated verion of (e.g. 360nm) brown?

Could it be that once the flower is fully in...
Forum: UV/IR Thermal or Xray Photography May 31st, 2011, 12:05 PM
Replies: 21
Views: 7,697
Posted By Bart_van_der_Wolf
Hi Klaus, I probably overlooked it on your...

Hi Klaus,

I probably overlooked it on your blog, but how did you make this calibration. Your ReflectionDisc is a single spectrally 'uniform' reflector.

Cheers,
Bart
Forum: Art Theory: Idea workshop. May 11th, 2011, 07:54 AM
Replies: 16
Views: 4,066
Posted By Bart_van_der_Wolf
Surrounding oneself with beauty, basking in it...

Surrounding oneself with beauty, basking in it even, sounds like a good start! Not sure about the added White Space though.

The formula is derived here...
Forum: Art Theory: Idea workshop. April 7th, 2011, 04:31 AM
Replies: 69
Views: 21,609
Posted By Bart_van_der_Wolf
Hi Asher, Probably because English not my...

Hi Asher,

Probably because English not my native language, but I get confused (or maybe not) about the distinction between critique (as in appraisal) and criticism (as in highlighting the faults...
Forum: UV/IR Thermal or Xray Photography March 23rd, 2011, 02:57 PM
Replies: 10
Views: 3,310
Posted By Bart_van_der_Wolf
Hi Fahim, Hardly, you just beat me to it...

Hi Fahim,

Hardly, you just beat me to it while I was eating my pasta meal (seasoned with lots of garlic and herbs). But a characteristic of silent diplomacy is that it's conducted behind the...
Showing results 1 to 36 of 36

 
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