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Forum: Troubleshooting and Beginner Help 08-04-2009, 06:23 PM  
Second Lens Advice for Newbie ??
Posted By Duck Dodgers
Replies: 27
Views: 4,585
Just to echo the remarks about fast primes, while my first lens after the kit lens was a Vivitar Series 1 70-210mm f/2.8-4 v3, the next one was a Pentax-A 50mm f/1.7. I find myself using it more than another other lens, even today.
Forum: Digital Processing, Software, and Printing 08-04-2009, 05:16 PM  
I think I overprocessed this one
Posted By Duck Dodgers
Replies: 19
Views: 5,266
In the end, what matters is whether the client likes it. :)
Forum: Troubleshooting and Beginner Help 08-02-2009, 05:47 PM  
What kind of Silica Gel do you use?
Posted By Duck Dodgers
Replies: 11
Views: 3,871
Forum: Troubleshooting and Beginner Help 08-02-2009, 05:25 PM  
Filter size for SMC Pentax-M 50mm F2?
Posted By Duck Dodgers
Replies: 4
Views: 6,143
Agreed. Get a metal lens hood and forget the filter. And remember you can use a deeper "tele" hood on a 50mm, due to the 75mm FOV on Pentax DSLRs.
Forum: Troubleshooting and Beginner Help 08-02-2009, 05:02 PM  
Need a tripod
Posted By Duck Dodgers
Replies: 46
Views: 5,076
I use a Bogen 3046...like the one Lester Bogen is sitting on here:



Seems stable enough. :lol:
Forum: Troubleshooting and Beginner Help 08-02-2009, 04:11 PM  
Speed of A Lens
Posted By Duck Dodgers
Replies: 11
Views: 2,155
The smaller the f-number, the faster the lens. Or said another way, the larger the aperture, the faster the lens.

Edit: For example, a 50mm f/4 macro is a reasonably slow lens; a 50mm f/1.2 is 3-1/3 f-stops "faster."
Forum: Digital Processing, Software, and Printing 08-02-2009, 10:45 AM  
Please do not PM me for PPL 4
Posted By Duck Dodgers
Replies: 39
Views: 8,110
Great computers, those Amigas. I still have an A500, an A1000, and an A3000 around here someplace.
Forum: Digital Processing, Software, and Printing 08-01-2009, 07:14 PM  
I think I overprocessed this one
Posted By Duck Dodgers
Replies: 19
Views: 5,266
Give her both options, but add one more: add the yellow back into the center of the daisy, while keeping the rest b&w. She might like that.
Forum: Photographic Technique 07-30-2009, 11:56 AM  
Dark sky with lots of stars... how to picture that???
Posted By Duck Dodgers
Replies: 16
Views: 7,060
The other night, I found that 5-6 seconds was about right for minimizing star trails and maximizing exposure, with a 50mm lens. Obviously, the wider the lens, the longer you can expose before trails become apparent. I have a star drive, but couldn't be bothered to hook it up that night, since I was in the middle of town. I just wanted to see what I could do with a K10D in all the ambient light pollution.
Forum: Photographic Technique 07-29-2009, 06:59 PM  
Dark sky with lots of stars... how to picture that???
Posted By Duck Dodgers
Replies: 16
Views: 7,060
Here's my recent attempt:


The "Sagittarius Star Cloud." Milky Way near Scutum, with M11, M16, M17, M24, and M25.

K10D, ISO 1000, A-50mm @ f/1.7, 8 seconds
Forum: Digital Processing, Software, and Printing 07-27-2009, 04:51 PM  
Please do not PM me for PPL 4
Posted By Duck Dodgers
Replies: 39
Views: 8,110
Oh, yeah. I remember that. They made a movie about it:

Colossus - The Forbin Project Movie Reviews, Pictures - Rotten Tomatoes

Colossus: The Forbin Project (1970)

:lol: :lol: :lol: :lol:
Forum: Photographic Technique 07-27-2009, 04:32 PM  
Night Photography
Posted By Duck Dodgers
Replies: 26
Views: 5,987
I would think that you could catch some on bulb, like waiting for lightning strikes. 'Course, they're not nearly as bright, and therein lies the rub: if the shutter is open long enough, at an aperture and ISO great enough to catch them, the frame will probably "fog" with ambient light before catching one.

Still, don't cost nuthin' but time.
Forum: Digital Processing, Software, and Printing 07-27-2009, 04:26 AM  
Colours strange in Firefox
Posted By Duck Dodgers
Replies: 9
Views: 3,658
Forum: Digital Processing, Software, and Printing 07-26-2009, 05:59 PM  
Linux help, please - Photoshop plugins in GIMP
Posted By Duck Dodgers
Replies: 4
Views: 4,605
I've never used PS plug-ins, but your post sounded interesting (and I was bored). I'm using Gimp 2.4, and placed the pspi stuff in ~/.gimp-2.4/plugins, and I made another directory, ~/.gimp-2.4/pspi and placed a PS plug-in in it. Registered the directory with xtns:Photoshop Plug-In Settings. The first time didn't work as I had only placed the .8bf file in the directory. Adding two .dat files that came with the plug-in solved that.

So, in other words, it worked for me. I suggest starting the Gimp from a terminal window, so you can see what errors (if any) are being generated when you click on the plug-in in the menu.
Forum: Post Your Photos! 07-26-2009, 09:32 AM  
First Long Exposure With My K7
Posted By Duck Dodgers
Replies: 16
Views: 2,251
Great shot! Mind posting the EXIF info on that one? And maybe a description of your PP work? Thanks!
Forum: Troubleshooting and Beginner Help 07-26-2009, 09:29 AM  
Filter or not?
Posted By Duck Dodgers
Replies: 48
Views: 5,453
...And yet, they didn't fare as well as Hoya in this spectrophotometer comparison:

UV filters test - Lenstip.com

My take is that years ago, UV filters offered the transparency film (slide) shooter a real advantage, especially when shooting in open shade. Slide film's sensitivity to UV caused many such shots to have a bluish overcast. Today, I never use filters of any sort except for one-off special-effects work. I buy Pentax lenses (mostly) for their color rendition; why would I want to alter that? But, YMMV. ;)
Forum: Digital Processing, Software, and Printing 07-25-2009, 11:41 AM  
RAW in Linux - PEF vs. DNG?
Posted By Duck Dodgers
Replies: 55
Views: 28,761
See above post #51 by jbinpg about WB and the K20D when using ufraw.
Forum: Photographic Technique 07-24-2009, 09:16 PM  
Poll: Do you guys peak out of the viewfinder with your left or right eye?
Posted By Duck Dodgers
Replies: 26
Views: 4,864
I am "right-eyed," also known as right-eye-dominate. I close my left to shoot (both cameras and rifles), but I'm right-handed, too. My daughter is right-handed, but left-eyed. Makes for some interesting contortions when shooting a rifle. :eek:

How to tell which you are:

SportVue: Eye Dominance Test
Forum: Flashes, Lighting, and Studio 07-24-2009, 08:50 PM  
Need flash manual or guide number
Posted By Duck Dodgers
Replies: 9
Views: 4,478
Right. Typically, the advertised guide number is for ISO/ASA 100, in feet or meters. But not always. Some less scrupulous companies used to "fudge" their guide numbers by advertising the ISO/ASA 200 guide number, without specifying, leading unsuspecting consumers to think it was more powerful than the competition, who used ISO/ASA 100.
Forum: Flashes, Lighting, and Studio 07-21-2009, 06:18 PM  
Need flash manual or guide number
Posted By Duck Dodgers
Replies: 9
Views: 4,478
Be sure and check the trigger voltage. Some older flashes can damage modern DSLRs.
Forum: Pentax SLR Lens Discussion 07-19-2009, 03:22 PM  
Helios-44M revisited...
Posted By Duck Dodgers
Replies: 41
Views: 13,653
Excellent! Please consider photographs of the operation, too. You could make a "how-to" article. One that I personally would love to see, as I just bought a 44M that looks exactly like yours, but has a fairly "gummy-feeling" focus ring that probably needs to cleaned and lubed. :)
Forum: Pentax SLR Lens Discussion 07-19-2009, 03:03 PM  
Whats With This Lens ???
Posted By Duck Dodgers
Replies: 12
Views: 4,531
Looks like a more modern-ish version of my old Spiratone 400mm f/6.3 or Cambron 500mm f/8 (plus zoom function, of course). The lack of aperture ring is odd, though. Even my Cambron can stop down to f/22.

Edited to add: That Bower weighs more than twice what either of mine do...1.5 lb vs 4.4 lb.
Forum: Photography Articles 07-19-2009, 02:55 PM  
Sticky: Online Depth Of Field Calculator
Posted By Duck Dodgers
Replies: 25
Views: 29,241
I just noticed the iphone screenshot. WTH? Focus point in the example is 5ft 26in? Isn't that the same as 7ft 2in? Or 86 inches? What kind of weird, illogical, un-intuitive interface is that? :hmm:
Forum: Pentax SLR Lens Discussion 07-19-2009, 02:55 PM  
Online Depth Of Field Calculator
Posted By Duck Dodgers
Replies: 20
Views: 13,714
I just noticed the iphone screenshot. WTH? Focus point in the example is 5ft 26in? Isn't that the same as 7ft 2in? Or 86 inches? What kind of weird, illogical, un-intuitive interface is that? :hmm:
Forum: Troubleshooting and Beginner Help 07-19-2009, 02:30 PM  
Recommend a first lens.
Posted By Duck Dodgers
Replies: 40
Views: 4,714
A fast 50mm may be a little longer than a "normal" lens when used with a Pentax DSLR, but it's certainly not unusable. My only lens was an A50/1.7 on my Boulevard Brewery tour:

Picasa Web Albums - riffraff - Boulevard Bre...
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