Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-21-2017, 12:52 PM - 1 Like   #16
Pentaxian




Join Date: Dec 2016
Posts: 1,169
QuoteOriginally posted by mehulmandan Quote
thanks for the response and advise. Got yr point.
i Have a few other pics at the same setting. Pl comment on them also.
Your 2nd example does look quite good. Nevertheless, using a faster shutter speed as others have noted is always a good idea, both in terms of being at the limit of what SR can do at long focal lengths, and the subject movement. Even when a bird moves its head or body slightly, they move with great speed.

There's also the matter of greatly reduced depth-of-field in long tele shots, especially when not at or near infinity focus. Even a slight body movement by you as you press the shutter release can throw focus off. The reduced DOF alone is a good reason to stop down, preferably to at least f/8 while maintaining higher shutter speed. This means a boost of ISO setting, which in good lighting will not likely be excessively high. At a moderate distance with a 300mm FL, f/8 will probably adequately defocus the background, otherwise to shoot at f/5.6 it is best to use a tripod as normhead suggests, if that is practical for you.


Last edited by mikesbike; 09-21-2017 at 01:04 PM.
09-21-2017, 01:20 PM - 1 Like   #17
Pentaxian
Alex645's Avatar

Join Date: May 2015
Location: Kaneohe, HI
Photos: Albums
Posts: 2,263
If you shoot RAW, there are many different software that will help to sharpen your image in post. There is no substitute for faster shutter speeds, smaller aperture, and critical focus, but whether you use Photoshop or Lightroom or Nik Collection's Sharpening app, in moderation, it will help to take some of the softness and loss of detail. Here's an example from your jpeg.

Last edited by Alex645; 05-23-2018 at 10:46 AM.
09-21-2017, 01:53 PM - 1 Like   #18
Site Supporter
Site Supporter
Madaboutpix's Avatar

Join Date: Dec 2011
Location: North Rhine-Westphalia
Photos: Gallery
Posts: 438
QuoteOriginally posted by jgnfld Quote
To be fair I now have the PLM version and it is far superior at focus. Same basic optics, though.

Whereas, coatings aside, the smc DA(-L) and HD DA WR versions share the same optics (12 elements, 8 groups), the new HD DA PLM WR version is a completely new design (14 elements, 11 groups). As far as consumer telephoto zooms go, all four iterations seem to perform quite decently, with the PLM at a slight advantage, if at the cost of a slightly-slower widest aperture.

Last edited by Madaboutpix; 09-21-2017 at 01:58 PM.
09-21-2017, 02:08 PM - 1 Like   #19
Site Supporter
Site Supporter




Join Date: Feb 2015
Location: Avalon Peninsula, Newfoundland
Photos: Gallery | Albums
Posts: 505
QuoteOriginally posted by Madaboutpix Quote
Whereas, coatings aside, the smc DA(-L) and HD DA WR versions share the same optics (12 elements, 8 groups), the new HD DA PLM WR version is a completely new design (14 elements, 11 groups). As far as consumer telephoto zooms go, all four iterations seem to perform quite decently, with the PLM at a slight advantage, if at the cost of a slightly-slower widest aperture.
Correct. I should have said same basic IQ.

The real advantage I notice for the PLM version is the really fast focus. Once focused I really do not see much to choose between them. I have found both very usable once focused.

09-21-2017, 07:52 PM - 1 Like   #20
Pentaxian




Join Date: Dec 2016
Posts: 1,169
The older DA-L and DA HD WR 55-300mm have quite long focus rotation design, which is slower for AF, especially when going from a near to a far point. If working at various points, all at similar distances, focus is much faster. Also, the longer rotation is better for fine-tuning MF. The newer design has a shorter focus rotation for quicker response and a quiet DC motor, instead of being screw-driven, and has internal focus, which tends to shorten effective focal length at closer distances. Your bird might not fill your frame as much, being more like perhaps at 250mm instead of 300mm.

I used the original version for some years, then bought the HD WR, giving away the older one. It had damaged filter threads, but works perfectly. Even though having the same optics, I noticed a slight improvement in image quality with the added HD coatings.
09-22-2017, 04:13 AM   #21
Junior Member




Join Date: Apr 2014
Photos: Gallery | Albums
Posts: 47
Original Poster
thank u everyone. Yr valuable suggestions and advice will surely help me improve.
Thanks
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
calibration, camera, iso, k-30, lens, pentax help, photography, sharpness advice, troubleshooting, wr
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Enhance! RAISR Sharp Images with Machine Learning interested_observer Photographic Technique 2 11-17-2016 07:21 AM
Not one, not two, not three, not four, but a wedding where half attendees are bob. LeDave Photographic Industry and Professionals 12 05-16-2016 03:40 AM
Not impressed k5 pics not sharp harleynitelite Pentax K-5 49 09-08-2012 12:55 PM
Is sharp images from Post processing? LeDave Troubleshooting and Beginner Help 12 07-29-2009 09:44 AM



All times are GMT -7. The time now is 01:53 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