Forgot Password
Pentax Camera Forums Home
 

Showing results 1 to 25 of 300 Search:
Forum: Pentax Camera and Field Accessories 04-05-2021, 08:56 PM  
Any ink marker safe to use on CF tripod legs?
Posted By Digitalis
Replies: 15
Views: 639
Some pens can contain solvents such as Xylene* that can adversely affect the resin that hold the carbon fibers together. Although the resin is formulated to be as inert as possible each manufacturer uses slightly different formulations and additives for Ultraviolet resistance, these variations make using solvent based markers a bit of a minefield. Using tape is by far the safest solution. I use paper medical tape, as it can be written on and is easy to cleanly remove without leaving residue.

* Xylene smells overpoweringly of overripe bananas to me, I get headaches working with the stuff in the lab.
Forum: Pentax Camera and Field Accessories 03-19-2021, 07:08 PM  
How do you carry your filters?
Posted By Digitalis
Replies: 15
Views: 764
I have been using a crumpler backpack camera bag chiefly because it doesn't look like a camera bag, and secondly because it is full of little pockets and pouches to store such things. Lee produce filter pouch for their square filter system and it is made of what I take to be neoprene, for me the problem with its design is the use of Velcro which is noisy and over time collects material that reduces its effectiveness. I had a leather worker reproduce it in soft Emu leather with brass snap buttons that are quicker to use while remaining secure. This pouch resides in the laptop storage compartment of the bag where it fits snugly.
Forum: Pentax DSLR Discussion 03-08-2021, 02:00 AM  
The KP seems to have been discontinued
Posted By Digitalis
Replies: 159
Views: 8,952
As am I, the KP is a very capable camera.

I have no regrets over getting the Silver KP..

Forum: Mini-Challenges, Games, and Photo Stories 03-07-2021, 09:09 PM  
Thematic Cats!
Posted By Digitalis
Replies: 784
Views: 53,531
An Interesting observation. Sunny, my little fluffy female cat has a profound affinity for running water: if there is a tap left running she will seek it out and run her paw through it. Given the chance I'm pretty sure she would climb into the sink and bathe in the water.
Forum: Lens Clubs 03-07-2021, 06:30 AM  
The FA Limited Club
Posted By Digitalis
Replies: 11,197
Views: 1,932,196
I recently got a new Corsair Cherry MX brown keyboard, a bit of a change from the cherry MX Red switches I have worked with over the past decade.


The keyboard also lights up in RGB... Why?because we all know the more LEDs you can cram on a device the better it is.



Pentax KP - SMCP-FA77mm f/1.8 Limited ISO 3200 @ f/5.6 1/60th
Forum: Mini-Challenges, Games, and Photo Stories 03-07-2021, 06:27 AM  
Thematic Cats!
Posted By Digitalis
Replies: 784
Views: 53,531
Tigger and little Sunny sleeping on the cat hammock.


Shot on my Iphone 11
Forum: General Photography 02-12-2021, 09:33 PM  
What unwanted surprise have you found in your camera bag?
Posted By Digitalis
Replies: 43
Views: 1,563
I'll take the bag of dog crap, you take the glitter. At least the bag of dog crap has the functional purpose of being able to be left ablaze on an irritating neighbors doorstep.



I can say that Glitter didn't do my lenses any favors either. Dust is bad, but glitter is worse particularly when you factor in that it can be electrically conductive. I feel sorry for the technician whose job it was to clean all that glittery gunk out, that paycheck was well earned.

Thankfully, Glitter was banned from the Sydney mardi-gras in 2019.The Ban was put in place over environmental concerns. Apparently the organizers would use about 3.8 tonnes of glitter* every year - Personally, I think that is a rather low estimate.

* I'll admit I'm having difficulty imagining the volume such an amount of glitter would occupy.
Forum: General Photography 02-12-2021, 06:46 AM  
What unwanted surprise have you found in your camera bag?
Posted By Digitalis
Replies: 43
Views: 1,563
After shooting photos all night for the Sydney Gay and Lesbian mardi gras, the camera bag I had with me had SO MUCH glitter in it by the end of the night. The glitter mostly consisted of tiny microscopic particles that simply cannot be brushed off. Glitter was in every single compartment and to top it off some of the larger glitter pieces (go figure) were phallic shaped (at least those pieces were the least tedious to remove) but they had a habit of falling out of concealed seams in the bag that at times probably would have engendered a lawsuit.

Being Australian, I have found a number of unpleasant outback denizens lurking unbidden in my camera bags over the years. The absolute worst of it was when a red-bellied black snake decided my Domke bag was a ideal place to inhabit while I was away from it shooting birds near a small river. The serpent abandoned its hiding place just as I had returned to the bag - I observed its escape. I find periodically stomping your feet when you are surrounded by tall grass and places likely to be occupied by snakes is a useful habit, snakes generally do not hear too well but they have an acute sense for vibrations.
Forum: Lens Clubs 02-08-2021, 06:42 PM  
*Macro* lens club
Posted By Digitalis
Replies: 4,188
Views: 571,421
I decommissioned a few server hard drives today, some of the parts looked interesting.



Pentax KP - Sigma 180mm f/3.5 APO EX @f/11 1/180th ISO 100.
Forum: Lens Clubs 02-08-2021, 06:39 PM  
The Sigma Lens Club- All lenses
Posted By Digitalis
Replies: 2,716
Views: 434,304
Decommissioned a few server drives today and removed some PC cards old systems I no longer need. Some of the parts were interesting when disassembled.


Pentax KP - Sigma 180mm f/3.5 APO EX @ f/3.5 1/60th ISO 6400 - cropped 1:1




Pentax KP - Sigma 180mm f/3.5 APO EX @f/11 1/180th ISO 100.
Forum: Digital Processing, Software, and Printing 01-28-2021, 12:13 AM  
Last Lightroom Version with Permanent License Becomes Less Useful
Posted By Digitalis
Replies: 71
Views: 3,295
I will expand upon this further later on but at some point someone has to ask: Do subscriptions really make software better?

In my lengthy experience with software there are examples of suites where the cost of ownership is a considerable investment* and while those editing and control suites offer good quality support and the product itself works well and has many useful features that cannot be found anywhere else. Photoshop however has been around for a very long time, and many of its features can be found and replicated with similar functionality in other apps and suites that cost considerably less produced by Corel, Serif, Phase one, Autodesk.

* $1000 a year for a single basic licensed standard edition. Quality Audio production software isn't cheap.
Forum: Lens Clubs 01-27-2021, 01:25 AM  
The FA Limited Club
Posted By Digitalis
Replies: 11,197
Views: 1,932,196


Pentax KP - Pentax FA77 f/1.8 Limited ISO 2500 1/500th f/8 11mm extension tube used
Forum: Mini-Challenges, Games, and Photo Stories 01-27-2021, 01:13 AM  
Thematic Cats!
Posted By Digitalis
Replies: 784
Views: 53,531
Articles fresh from the clothes dryer are a major attraction for cats.

Forum: Pentax News and Rumors 01-13-2021, 02:50 AM  
Guangzhou | K-3 Mark III preview meeting
Posted By Digitalis
Replies: 264
Views: 28,174
That is my impression too. It could possibly be some mockup for a yet-to-be-announced lens, as it lacks a distance scale and other distinguishing markings.

Whenever I read an announcement from Pentax, I hope it will be something weird and wonderful.
Forum: Pentax SLR Lens Discussion 01-13-2021, 12:33 AM  
What is the purpose of the 15mm limited?
Posted By Digitalis
Replies: 210
Views: 10,753
The DA15mm f/4 ASPH limited is simply a delight to work with, small and unobtrusive, also practically impervious to flare. The only downside I can think of about it is the lens cap which is designed in a way to cause maximum frustration when putting it on or taking it off, for the sake of your sanity and your fingers - get a pinchie lens cap.



Pentax K10D - SMCP-DA15mm f/4 ASPH Limited.




Pentax K5IIS - SMCP-DA15mm f/4 ASPH limited.



A depiction of its svelte dimensions compared to an optically* superior lens





* as far as corner sharpness is concerned, flare resistance of the Sigma 8-16mm f/4.5~5.6 pales in comparison to the DA15. IMO I can't really recall many lenses in the wide angle category that is quite as flare resistant as the DA15.
Forum: General Talk 12-24-2020, 12:25 AM  
The Joke Thread
Posted By Digitalis
Replies: 3,862
Views: 323,812
Forum: Pentax SLR Lens Discussion 12-11-2020, 05:02 PM  
Totally unscientific and lazy - flower with DA16-85, FA50/1.4, K50/1.2, DFA100WR
Posted By Digitalis
Replies: 14
Views: 787
You rang.




Touching is OK, just don't eat any of it. The root system is particularly loaded with dangerous compounds.
Forum: General Photography 12-06-2020, 10:17 PM  
Focal length doesn't affect subject compression - demonstrated
Posted By Digitalis
Replies: 70
Views: 2,861
In practical examples Lens breathing can really make a mess of this.
Forum: Pentax DSLR Discussion 12-06-2020, 10:08 PM  
GAS attack: CCD vs. CMOS why choose one over the other ?
Posted By Digitalis
Replies: 42
Views: 2,911
Better? No, Different,Yes.
Forum: General Photography 12-04-2020, 06:06 PM  
Focal length doesn't affect subject compression - demonstrated
Posted By Digitalis
Replies: 70
Views: 2,861
:shrug: It's a great way to pad an essay or lengthy treatise.
Forum: General Photography 12-04-2020, 02:04 AM  
Focal length doesn't affect subject compression - demonstrated
Posted By Digitalis
Replies: 70
Views: 2,861

FYI: these were taken on a full format DSLR, taken at a fixed aperture of f/2.8



I use this image in my teaching quite a bit as it not only shows the resulting images from each focal length, it also displays the necessary working distance for each shot. As an anecdote: a few years back I was shooting a tight headshot of a model with an uncommonly fast* schneider 870mm f/6.7 lens** on my Ebony 8X10 camera, the model said it felt like being in a staring contest with the eye of Sauron.

* f/5.6 being fast for 8X10 lenses, lenses any faster than this are a real headache to focus wide open.

**which works out to be roughly 128mm in 35mm format terms.
Forum: Pentax SLR Lens Discussion 12-03-2020, 10:15 PM  
Got a radioactive lens? Check it with a Geiger counter!
Posted By Digitalis
Replies: 30
Views: 1,219
We're making fun of people who buy Takumars and then out of sheer misinformed panic, buy Geiger counters without having any skill on correctly interpreting the results, or having any knowledge on how to calibrate such a device.
Forum: Pentax SLR Lens Discussion 12-03-2020, 09:40 PM  
Got a radioactive lens? Check it with a Geiger counter!
Posted By Digitalis
Replies: 30
Views: 1,219
If you live in areas affected by the Chernobyl nuclear disaster or other "hot" areas due to similar accidents having a geiger counter is perfectly understandable, essential to those who chose to reside in the Chernobyl exclusion zone.
Forum: Photographic Technique 12-03-2020, 09:36 PM  
Antony Armstrong-Jones and his photo technique
Posted By Digitalis
Replies: 12
Views: 1,179
It is an interesting to note that the Queen Elizabeth II is an avid photographer - From what I know, she shoots Leica.
Forum: Flashes, Lighting, and Studio 12-03-2020, 03:05 PM  
20 or 30 Degree grid for the Godox AD-R6 Reflector
Posted By Digitalis
Replies: 8
Views: 567
Also bear in mind when buying a snoot or fresnel attachment - as a matter of personal safety and protecting your gear, get one with rear angled ventilation holes. Snoots and fresnels designed for continuous LED frequently omit these and can become incredibly hot.




Godox make their gear to some annoyingly loose specifications, my standard grid set doesn't fit as snugly with their reflectors as they do with the standard bowens reflectors I have had for decades, as always YMMV. I still have a set of useless reflectors that came with my AD360s.
Search took 0.05 seconds | Showing results 1 to 25 of 300

 
Forum Jump


All times are GMT -7. The time now is 10:26 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top