Jelly Fish with Pentax FA 50 f/1.4

2008-07-11
Pentax FA 50 f/1.4 is not a macro, but I used a Cosina/Pentax/Phoenix 1:1 Matched Macro Adapter and use fast apertures in f/1.4 to f/2.8 for all of my shots in a dark aquarium. At first, I tried my default setting of f/2.8 in iso 400 but the resulting shutter speed too slow for motion in the jelly fish, perhaps my hand shake too, and I resolved to count on faster speed in f/1.4, f/1.6 and f/1.8 and work with a cleaner background on iso 200.

Pictures were taken with Pentax K10D & Pentax FA 50 f/1.4. All are hand-held shots in iso 400 and 200.
#1
1/40 sec, f/2.8, 50mm, iso 400, 0 Ev
Picture with Pentax K10D, Pentax FA 50 f/1.4 & Cosina 1:1 Matched Macro adapter
#2
1/6 sec, f/2.8, 50mm, iso 400, 0 Ev
Picture with Pentax K10D, Pentax FA 50 f/1.4 & Cosina 1:1 Matched Macro adapter
#3
1/13 sec, f/2.8, 50mm, iso 400, 0 Ev
Picture with Pentax K10D, Pentax FA 50 f/1.4 & Cosina 1:1 Matched Macro adapter
#4
1/30 sec, f/1.4, 50mm, iso 200, 0 Ev
Picture with Pentax K10D, Pentax FA 50 f/1.4 & Cosina 1:1 Matched Macro adapter
#5
1/20 sec, f/1.4, 50mm, iso 200, 0 Ev
Picture with Pentax K10D, Pentax FA 50 f/1.4 & Cosina 1:1 Matched Macro adapter
#6
1/30 sec, f/1.4, 50mm, iso 200, 0 Ev
Picture with Pentax K10D, Pentax FA 50 f/1.4 & Cosina 1:1 Matched Macro adapter
#7
1/25 sec, f/1.8, 50mm, iso 200, 0 Ev
Picture with Pentax K10D, Pentax FA 50 f/1.4 & Cosina 1:1 Matched Macro adapter
Jelly Fish complete Flickr Set

Impressions & Notes:
  • Metering and AF stays on, this comes in very handy for the FA 50 f/1.4
  • Almost no addition of weight as compared to extension tubes or Vivitar/Kenko 2x macro adapter
  • IQ is not the best but very acceptable, there seems little loss of light as compared to 2 stop loss of light in 2x macro adapter and similar loss of light in extension tubes
  • Sharpness and detail in corner may degrade but results seems reasonable for the center
Related:


0 comments:

Post a Comment

 

About

Welcome to Hin's Photo Corner, this is my learning blog on photography, blogging and advertising. And I hope you enjoy your visit. For contact, please comment in blog post or email me directly hintheman at gmail.com.

 

B&H Best Deals

Statcounter