Forgot Password
Pentax Camera Forums Home
 

Showing results 1 to 25 of 300 Search:
Forum: Lens Clubs 5 Days Ago  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
A recently minted female Superb-fairy Wren, learning how the wings work.
Mum, Dad, and all the uncles and aunts were keeping a close eye on proceedings.
K-3 II, DFA 150-450 + 1.4x TC handheld. See exif for shot details.

Cheers,
Terry
Forum: Pentax SLR Lens Discussion 11-10-2017, 03:08 PM  
contemplating a purchase of da300..
Posted By tduell
Replies: 37
Views: 1,117
Hello grispie,
I spend most of my time shooting birds, and most of it with the K-3 II and DFA 150-450 + 1.4x TC (630mm).
I started out with a 300mm but it was too short, migrated to the DFA 150-450 but found that was also too short much of the time...added the 1.4x TC and still end up having to crop quite a bit as well!
I suspect I really need a FA 600 f/4 + 1.4x TC, if I could carry it!
My view is you want the longest lens you can carry.
Hope that helps.

Cheers,
Terry
Forum: Lens Clubs 11-07-2017, 02:41 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Laughing Kookaburra. Sometimes you can be lucky. This bloke posed for me in good light...mostly they don't.
K-3 II, 150-450 handheld. see exif for shot details.

Cheers,
Terry
Forum: Lens Clubs 11-06-2017, 03:34 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Yellow-rumped Thornbill.
K-3 II, 150-450 + 1.4x TC handheld. See exif for shot details.

Cheers,
Terry
Forum: Lens Clubs 11-05-2017, 03:45 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Brown Goshawk. She was not very happy with me being near the nest.
K-1, 150-450 + 1.4x TC, handheld. See exif for shot details.

Cheers,
Terry
Forum: Lens Clubs 11-04-2017, 05:23 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Thanks, but the whites on his neck are blown, much more than I'd like.
They are a difficult subject, particularly their back view which shows much more white.
When you get the exposure right there is some very nice detail in their feathers.
Cheers,
Terry
Forum: Digital Processing, Software, and Printing 11-04-2017, 03:39 PM  
Question for Darktable (under Linux) users
Posted By tduell
Replies: 10
Views: 350
Hello BMC,
I don't see any lens correction tools available in the current development source, other than the 'Perspective Correction' tool, which probably isn't much help.
Send the darktable devs a feature request via their bug report, (see here development | darktable), as your requirement seems like it could be useful for many users.

Cheers,
Terry
Forum: Lens Clubs 11-04-2017, 03:15 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Australian Magpie on 'lunch duty'. One day I'll manage to get the exposure right for one of these blokes :)
K-3 II, 150-450 + 1.4x TC handheld. See exif for shot details.

Cheers,
Terry
Forum: Lens Clubs 11-03-2017, 03:14 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Red-rumped Parrot (juvenile).
K-3 II, 150-450 + 1.4x TC, handheld. See exif for shot details.

Cheers,
Terry
Forum: Lens Clubs 11-02-2017, 02:55 PM  
Post your HD PENTAX-D FA 150-450mm F4.5-5.6 ED DC AW pictures!
Posted By tduell
Replies: 1,177
Views: 156,536
Hello RobG,
I have a Benro GC168T GoTravel1. It's carbon fibre and a monopod can be made out of one leg and the centre pole. It's light and very well made and engineered.
I haven't used it much and think it is a bit light-on when fully extended. The monopod is OK and the ball head does hold the camera and lens mass OK.
Most of my use with the tripod has been indoors, but I think a more substantial/heavier tripod would be more suitable for outdoor work.
Hope that helps.

Cheers,
Terry
Forum: Lens Clubs 11-02-2017, 02:46 AM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Whistling Kite.
K-1, 150-450 + 1.4x TC, handheld. See exif for shot details.

Cheers,
Terry
Forum: Lens Clubs 10-31-2017, 10:25 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Tah.



Ha...if I remember correctly he was doing all the ruffling and I was just lucky to catch him at it.

Cheers,
Terry
Forum: Digital Processing, Software, and Printing 10-31-2017, 10:16 PM  
Pixel Shift Raw and DxO PhotoLab?
Posted By tduell
Replies: 12
Views: 611
One possibility is to install dcrawps (a command line application) which will allow you to export a pixel-shifted TIFF which can be imported into your favourite post processor.
dcrawps provides a lot of useful options, and includes the ability to manage any subject movement between the PS shots.

Cheers,
Terry
Forum: Lens Clubs 10-31-2017, 03:20 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Willy Wagtail.
K-3 II, 150-450 + 1.4x TC handheld. See exif for shot details.

Cheers,
Terry
Forum: Lens Clubs 10-30-2017, 10:52 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
A couple of Superb Fairy-wrens.
The little lady in the 1st became quite fascinated by her reflections in the car, and the male in the 2nd has almost lost his breeding plumage...or just getting it, one or the other :confused:
Both shot with K-3 II, 150-450 + 1.4x TC, handheld. See exif for shot details.

Cheers,
Terry
Forum: Digital Processing, Software, and Printing 10-28-2017, 10:25 PM  
Fun and confusion with colour spaces - RAW vs. output JPEGs (yellows especially!)
Posted By tduell
Replies: 10
Views: 537
Curious.
I've been using darktable with Fedora for years, and never seen any issues similar to those described with exported jpg and the Linux image-viewer. Lucky I guess.

Cheers,
Terry
Forum: Lens Clubs 10-28-2017, 03:09 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Eastern Yellow Robin, Caloundra.
K-3 II, 150-450 + 1.4x TC, handheld. See exif for shot details.

Cheers,
Terry
Forum: Troubleshooting and Beginner Help 10-27-2017, 02:42 PM  
Trouble with Sigma 18-300C
Posted By tduell
Replies: 10
Views: 409
I use the 18-300C on a K-3 II, always with the lenshood, and never seen this effect, if that's any help.

Cheers,
Terry
Forum: Lens Clubs 10-26-2017, 09:23 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Eastern Reef Egret, Caloundra.
K-1, 150-450 + 1.4xTC, handheld. See exif for shot details.

Cheers,
Terry
Forum: Pentax DSLR Discussion 10-25-2017, 03:08 PM  
Pixel Shift roots in year 2000 by Ricoh.
Posted By tduell
Replies: 15
Views: 826
As I understand it, the current Pentax pixel shift method moves the sensor by exactly one pixel for each of the PS shots, not subpixels, hence resulting in R G & B values that aren't interpolated.
The repeating bayer pattern of GRBG covers four pixels on the sensor, not one, and without pixel shift it is necessary to interpolate those GRBG values to arrive at an estimated R G & B for each pixel on the sensor.
The subpixel approach is what is commonly referred to as the 'super-resolution' approach, and is aimed at a 'finer' pixel resolution but still requires R G & B to be interpolated.
It can be done post camera with any number of shots taken with very subtle camera movements and a lot of maths on those images to get a 'super-resolution' result.

Cheers,
Terry
Forum: Lens Clubs 10-24-2017, 09:12 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
This shot was taken at Woodlands Historic Park, my main birding location for a few years now.
Unfortunately there isn't anywhere near as many birds there lately and can only hope it is a result of lack of rain and that they will be back.

Cheers,
Terry
Forum: Lens Clubs 10-24-2017, 03:31 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
...or if the bird wasn't there :lol:

Cheers,
Terry
Forum: Lens Clubs 10-23-2017, 09:56 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Striated Pardalote.
K-3 II, 150-450 + 1.4xTC, handheld. See exif for shot details.
I spotted the pardalotes coming and going at their nest, and they almost always used the same perch before entering the nest. It provided me with a good opportunity to get some close-up shots, just a pity I was unable to avoid the OOF branch in the background. I might have to go back and do a bit of pruning :)

Cheers,
Terry
Forum: Lens Clubs 10-22-2017, 03:12 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
Welcome Swallow, on the Murray River.
K-3 II, 150-450 + 1.4xTC, handheld. See exif for shot details.

Cheers,
Terry
Forum: Lens Clubs 10-21-2017, 04:14 PM  
The 300mm plus lens Club discuss your long lenses.
Posted By tduell
Replies: 26,867
Views: 2,272,826
A couple from the Murray River.
The first, a Sacred Kingfisher. K-1, 150-450, handheld. A big crop.
The second, a Superb Fairy-wren. K-3 II, 150-450 + 1.4xTC, handheld. This bloke had no fear at all, almost too close to focus.

Cheers,
Terry
Search took 0.01 seconds | Showing results 1 to 25 of 300

 
Forum Jump


All times are GMT -7. The time now is 06:57 AM. | 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