Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-29-2018, 08:59 AM - 2 Likes   #1
Site Supporter
Site Supporter




Join Date: May 2016
Location: Duluth, MN
Posts: 140
F16 vs. f1.4 DFA* 50

One to show a shot from several feet away at f1.4. There is a bit of distracting bright blurry driftwood in the background. It was not easy to focus perfectly on the dog's face. Live view worked best. Then a simple shot to show the star effect at f16.

Attached Images
View Picture EXIF
PENTAX K-1  Photo 
View Picture EXIF
PENTAX K-1  Photo 
07-29-2018, 09:06 AM - 1 Like   #2
Site Supporter
Site Supporter




Join Date: May 2016
Location: Duluth, MN
Posts: 140
Original Poster
Here's the 100% crop of the first shot...
Attached Images
View Picture EXIF
PENTAX K-1  Photo 
07-29-2018, 09:39 AM   #3
Senior Member




Join Date: Jan 2014
Location: Deva
Posts: 195
Different aperture, diferent uses.

i am sure this lens is up to all challenges. Congrats on a nice piece of equipment (a.k.a. toy)
07-29-2018, 09:43 AM   #4
Junior Member




Join Date: May 2016
Photos: Gallery | Albums
Posts: 48
A great lens that if used with a bit of caution can produce great images. Nice shot and great dog!

07-29-2018, 10:04 AM   #5
Loyal Site Supporter
Loyal Site Supporter
pschlute's Avatar

Join Date: Mar 2007
Location: Surrey, UK
Photos: Gallery
Posts: 2,679
Lovely doggy, and I think this lens is going to be so popular.
07-29-2018, 10:34 AM   #6
Site Supporter
Site Supporter
BullsOnParade81's Avatar

Join Date: Jan 2016
Location: Tampa Florida
Posts: 287
Great shot
07-29-2018, 11:11 AM   #7
Veteran Member
ZeljkoS's Avatar

Join Date: Feb 2014
Location: Banja Luka
Photos: Gallery | Albums
Posts: 340
Great shots, that lens seems to be amazing
07-29-2018, 12:37 PM   #8
Forum Member




Join Date: Dec 2010
Photos: Gallery
Posts: 54
The 100% crop looks really nice, this does look like it will be a nice walkabout lens.

07-29-2018, 03:35 PM   #9
Site Supporter
Site Supporter




Join Date: Jan 2008
Location: Michigan
Posts: 413
Amazing lens!
07-29-2018, 03:55 PM   #10
Journeyman Cat Wrangler
Loyal Site Supporter
SSGGeezer's Avatar

Join Date: Jun 2017
Location: Maine, U.S.
Photos: Gallery | Albums
Posts: 3,638
Even though I shoot APSC, am I going to have to get another job so I can pay for my LBA?
07-29-2018, 05:12 PM   #11
Pentaxian
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 9,520
nice torture test for the lens. There is a slight amount of fringing here, it can only be seen in the 100% crop - but I can think of lenses Pentax has made* that would have done far worse considering the extreme contrast..

*The SMCP-FA 77mm f/1.8 limited springs to mind, that dogs nose would have been fringed with purple.
07-29-2018, 09:54 PM   #12
Site Supporter
Site Supporter




Join Date: Apr 2014
Location: Houston, TX
Posts: 185
Great lens. Reminds me of an 85,, 1.4 lens
07-29-2018, 10:33 PM   #13
Junior Member




Join Date: Jul 2014
Location: Tenryu
Posts: 27
QuoteOriginally posted by donpjt Quote
Great lens. Reminds me of an 85,, 1.4 lens
Now, I have to search the forum for a comparison of the FA 85 the DFA 50. Trying to figure out which toy will burn the next hole in my wallet.
07-30-2018, 12:16 AM   #14
Site Supporter
Site Supporter




Join Date: Jul 2016
Location: Berlin
Posts: 257
QuoteOriginally posted by johnkrumm Quote
It was not easy to focus perfectly on the dog's face. Live view worked best.

That doesn't sound very good
07-30-2018, 08:03 AM   #15
Site Supporter
Site Supporter




Join Date: May 2016
Location: Duluth, MN
Posts: 140
Original Poster
QuoteOriginally posted by Dericali Quote
That doesn't sound very good
Three issues were at play. Very low depth of field, a very dark face with bright white fur in other areas, and typical dog movement. In this case I had better luck focusing on her eye with live view. Sometimes contrast detect can be more precise.
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!
f1.4, f16, k-mount, pentax lens, shot, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K-5 vs MZ-S vs LX vs PZ-1p vs ist*D vs K10D vs K20D vs K-7 vs....... Steelski Pentax K-5 2 06-28-2017 04:59 PM
f16 f32... hjoseph7 Pentax SLR Lens Discussion 25 11-14-2014 10:28 PM
Machinery Film scans from 1993: Air National Guard F16 ismaelg Post Your Photos! 2 09-02-2010 02:39 PM
Why is F16 marked in blue? What is the red 'R'? Stefan Carey Pentax SLR Lens Discussion 5 05-09-2009 09:45 PM
landscapes... which lens is sharpest at F16 to F32 etc? slip Pentax SLR Lens Discussion 7 01-06-2007 07:41 PM



All times are GMT -7. The time now is 09:21 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