Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-04-2013, 02:37 AM   #31
Forum Member




Join Date: Nov 2012
Posts: 71
QuoteOriginally posted by Phillean Quote
Here is a real newbie night shot with my K-x , not taken by me but I don't think I would have done better with a quick shot.

K-x and the kit 18-55mm lens. Shot in raw and converted to jpeg, scaled and cropped.

A sharper lens here would have been useful.

1/15 sec F3.5 18mm ISO 400
Just for a handheld shot, rule of thumb is at least twice the speed of your camera lens (can't remember if that is for full frame or smaller), meaning for 18mmx2=1/36sec. Personally, for 18mm, I probably would not drop below 1/60 sec to 1/90 sec., although I might try 1/45 and that is if the subject is not really exhibiting movement.

01-04-2013, 02:56 AM   #32
New Member
Phillean's Avatar

Join Date: Dec 2012
Location: Canberra, Australia
Posts: 23
Original Poster
QuoteQuote:
Just for a handheld shot, rule of thumb is at least twice the speed of your camera lens (can't remember if that is for full frame or smaller), meaning for 18mmx2=1/36sec. Personally, for 18mm, I probably would not drop below 1/60 sec to 1/90 sec., although I might try 1/45 and that is if the subject is not really exhibiting movement
Yes, some good points. This was simply a handheld full auto at night with bright lights around, but the scene was not brightly lit. A photo to demonstrate what is possible as a starting point. From there we move on to a specialised lens and higher ISO and new settings.
01-04-2013, 10:25 AM   #33
Pentaxian




Join Date: Oct 2011
Location: Savannah, GA
Posts: 4,989
QuoteOriginally posted by bigrex Quote
I've heard the Samyang can be a dust magnet for the internals, not properly sealed, or something after that order. It is sharp until that befalls it. Zenitar 16mm is very sharp if your conditions allow stopping it down to f11 - f22.
I read one review on Amazon that said that, but it was by an obvious idiot who didn't know what he was saying, even though he claimed to be a professional director and videographer -- I think he had dust on his sensor that he could see stopped down and was blaming the lens. Couldn't find any credible reviews that said that. I wouldn't worry about internal dust any more than any other lens. They all get some dust inside, generally it is not a big deal -- big zooms are usually the ones sucking it up with their vacuum action. The front element with its bulb can tend to pick it up like any such lens, and with an extreme wide-angle you might be able to see it if you stop down since the front element is nearly in-focus. But the Samyang also only costs half as much as any competitor...
01-06-2013, 05:32 AM   #34
Site Supporter




Join Date: May 2012
Location: Adelaide
Photos: Gallery | Albums
Posts: 1,082
K-x is perfectly usable at ISO1600 taking some care with NR during post processing. ISO3200 also usable. But with either, avoid underexposed shots. Dragging up underexposed shots also drags up the noise.

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!
angle, crowds, k-mount, lens, lenses, pentax lens, pentax-da, slr lens, smc, street
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ultra wide angle guidance, please testdasi Photographic Technique 3 04-05-2011 07:36 AM
Ultra Wide Angle lens- Which one ? taiweitai Pentax SLR Lens Discussion 31 02-18-2011 02:45 AM
M42 Ultra wide primes that are sharp and contrasty imadethis Pentax SLR Lens Discussion 4 09-10-2007 06:52 PM



All times are GMT -7. The time now is 04:51 PM. | See also: NikonForums.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