RiceHigh's Pentax Blog: September 2015

Wednesday, September 30, 2015

MTF Charts of the DFA24-70 Vs Tamron A007

They look very close, but there are minor differences, probably due to sample variation or measurement method differences.

Credit: Love Penta. XYZ (Japanese)

Monday, September 28, 2015

New K-mount Roadmap

Via: Photo Rumors

Saturday, September 26, 2015

HD PENTAX-D FA 24-70mmF2.8ED SDM WR is Just a Tamron A007 OEM Variant

http://www.ricoh-imaging.co.jp/japan/products/lens/k/standard/hdpentax-dfa-24-70/

http://www.tamron.co.jp/lineup/a007/specifications/index.html

Someone cloned the two into an animated gif and got:

So, they are proven to be identical optically.

Thursday, September 24, 2015

HD PENTAX-D FA 24-70mm F2.8ED SDM WR (Rumour Stage)

http://digicame-info.com/2015/09/hd-pentax-d-fa-24-70mm-f28ed-s.html

Sunday, September 20, 2015

Size Comparison Again! Pentax FF Vs Canon 5D Mark III

This is what I have compared with the images got from the camerasize.com. Here we go, the Pentax FF image has been accurately resized:

Photodo MTF Scores for Pentax FF and MF Lenses

Maybe it's time to check and review the old figures, there are at least six months to go! ;-p

And, the Pentax lenses I own are marked in Bold, although not all of my FF/MF Pentax lenses were tested by the Photodo, e.g., my FA31 and 77 Limiteds! :-D

Credits: Photodo and http://bbs.sjtu.cn/bbscon,board,Photo,file,M.968209306.A.html

Grade: 3.7 35mm/AF Pentax SMC-FA 20/2,8
Grade: 3.7 35mm/AF Pentax SMC-FA 24/2 AL (IF)
Grade: 3.8 35mm/AF Pentax SMC-FA 28/2,8 AL
Grade: 3.6 35mm/AF Pentax SMC-FA 43/1,9 Limited
           35mm/AF Pentax SMC Pentax-FA Makro 50/2,8
Grade: 4.2 35mm/AF Pentax SMC-FA 50/1,4
           35mm/AF Pentax SMC-FA 50/1,7
Grade: 4.6 35mm/AF Pentax SMC-F 50/1,4
Grade: 4.6 35mm/AF Pentax SMC-F 50/2,8 macro
Grade: 4.4 35mm/AF Pentax SMC-F 50/1,7
           Medi/AF Pentax 645 SMC-FA 75/2,8
           35mm/AF Pentax SMC Pentax-FA Soft 85/2,8
           35mm/AF Pentax SMC-FA 85/1,4 (IF)
Grade: 3.9 35mm/AF Pentax SMC-FA Makro 100/2,8
Grade: 4.3 35mm/AF Pentax SMC-F 100/2,8 macro
Grade: 3.7 35mm/AF Pentax SMCP-FA 100/3,5 Macro
           Medi/AF Pentax SMC-FA 645 120/4 Macro
Grade: 3.5 35mm/AF Pentax SMC-F 135/2,8 IF
Grade: 3.2 35mm/AF Pentax SMC-FA 135/2,8 IF
           35mm/AF Pentax SMC-FA 200/2,8 ED IF
           Medi/AF Pentax SMC-FA 645 200/4 (IF)
           35mm/AF Pentax SMC-FA 300/2,8 ED (IF
Grade: 4   35mm/AF Pentax SMC-FA 300/4,5 ED IF
           Medi/AF Pentax 645 SMC-FA 300/4 ED IF
Grade: 3.9 35mm/AF Pentax SMC-F 300/4,5 IF ED
           Medi/AF Pentax 645 SMC-FA 400/5,6 ED IF
Grade: 3   35mm/AF Pentax SMC-FA 400/5,6 ED IF
           35mm/AF Pentax SMC-A 500/4,5
           35mm/AF Pentax SMC-FA 600/ 4 ED (IF
Grade: 2.7 35mm/AF Pentax SMC-F Fisheye zoom 17-28/3,5-4,5
Grade: 3.4 35mm/AF Pentax SMCP-FA 20-35/4 AL
Grade: 3.2 35mm/AF Pentax SMC-FA Zoom 28-105/4-5,6
Grade: 1.7 35mm/AF Pentax SMC-FA Zoom 28-200/3,8-5,6 AL (IF)
Grade: 3.5 35mm/AF Pentax SMC-FA Zoom 28-70/2,8 AL
Grade: 3.3 35mm/AF Pentax SMC-FA Zoom 28-70/4 AL
Grade: 2   35mm/AF Pentax SMC-FA 28-80/3,5-5,6
Grade: 2.3 35mm/AF Pentax SMC-FA 28-80/3,5-4,7
Grade: 3.3 35mm/AF Pentax SMC-F 28-80/3,5-4,5
Grade: 2.8 35mm/AF Pentax SMC-F 35-105/4-5,6
Grade: 2.5 35mm/AF Pentax SMC-F 35-135/3,5-4,5
Grade: 3.1 35mm/AF Pentax SMC-F 35-70/3,5-4,5
           Medi/AF Pentax 645 SMC-FA 45-85/4,5
Grade: 2.9 35mm/AF Pentax SMC-FA Zoom 70-200/4-5,6
Grade: 2.9 35mm/AF Pentax SMC-F 70-200/4-5,6
Grade: 3.4 35mm/AF Pentax SMC-F 70-210/4-5,6
Grade: 3.2 35mm/AF Pentax SMC-FA Zoom 80-200/2,8 ED (IF)
Grade: 2.5 35mm/AF Pentax SMC-FA 80-320/4,5-5,6
           Medi/AF Pentax SMC-FA 645 80-160/4,5
           35mm/AF Pentax SMC-FA Zoom 250-600/5,6 ED (IF)
           35mm/MF Pentax SMC Pentax A 15/3,5
           35mm/MF Pentax SMC Pentax A Fisheye 16/2,8
           35mm/MF Pentax SMC-A 20/2,8
Grade: 2.7 35mm/MF Pentax SMC-A 24-50/4
Grade: 2.5 35mm/MF Pentax SMC-F 24-50/4
           35mm/MF Pentax SMC Pentax Shift 28/3,5
Grade: 3.2 35mm/MF Pentax SMC-F 28/2,8
Grade: 2.8 Medi/MF Pentax 645 SMC-A 35/3,5
           Medi/MF Pentax 67 35/4,5
Grade: 2.2 35mm/MF Pentax SMC-F Zoom 35-80/4-5,6
           Medi/MF Pentax 645 45/2,8
           Medi/MF Pentax 67 45/4
           Medi/AF Pentax 645 SMC-FA 45/2,8
           35mm/MF Pentax SMC-A 50/1,2
Grade: 4   35mm/MF Pentax SMC-A 50/2
           Medi/MF Pentax 645 55/2,8
           Medi/MF Pentax 67 55/4,0
                 Medi/MF Pentax 67 Zoom 55-100/4,5
Grade: 3.4 Medi/MF Pentax 645 SMC-A 75/2,8
                 Medi/MF Pentax 645 75/2,8 LS
                 Medi/MF Pentax 67 75/4,5
                 Medi/MF Pentax 67 75/4,5 shift
Grade: 3   35mm/AF Pentax SMC-F Zoom 80-200/4,7-5,6
Grade: 4.6 35mm/MF Pentax SMC-A 85/1,4
                 Medi/MF Pentax 67 90/2,8
                 Medi/MF Pentax 67 100/4,0 macro
Grade: 2.4 35mm/MF Pentax SMC-FA 100-300/4,5-5,6
                 Medi/MF Pentax 67 105/2,4
Grade: 3.6 Medi/MF Pentax 645 SMC-A 120/4,0 macro
                 Medi/MF Pentax 67 120/3,5 Soft
                 Medi/MF Pentax 645 135/4 LS
                 Medi/MF Pentax 67 135/4 Macro
Grade: 4.2 35mm/MF Pentax SMC-A 135/1,8
                 Medi/MF Pentax 645 150/3,5
                 Medi/MF Pentax 67 165/2,8
                 Medi/MF Pentax 67 165/4 LS
                 Medi/MF Pentax 645 200/4
                 Medi/MF Pentax 67 200/4
Grade: 4.2 35mm/MF Pentax SMC-A Macro 200/4ED
Grade: 3.7 35mm/MF Pentax SMC-A 200/2,8 ED
Grade: 3.4 Medi/MF Pentax 645 SMC-A 300/4 IF ED
                 Medi/MF Pentax 67 300/4
                 35mm/MF Pentax SMC-A 300/2,8 ED (IF
                 Medi/MF Pentax 67 400/4 ED (IF)
Grade: 3   35mm/MF Pentax SMC-A 400/5,6
           35mm/MF Pentax SMC-A 400/2,8 ED IF
           35mm/MF Pentax SMC-A Reflex Zoom 400-600/8-12
           Medi/MF Pentax 67 500/5,6
           Medi/MF Pentax 645 600/5,6 APO
                 Medi/MF Pentax 67 600/4
                 Medi/MF Pentax 67 800/4
                 Medi/MF Pentax 67 800/4 EDIF
                 Medi/MF Pentax 67 1000/8
                 35mm/MF Pentax SMC-Reflex 1000/11
                 35mm/MF Pentax SMC-A 1200/8 ED (IF
                 35mm/MF Pentax SMC-M Reflex 2000/13,5
Grade: 2.1 35mm/MF Pentax SMC-A 28-80/3,5-4,5
           35mm/MF Pentax SMC-A Zoom 35-80/4-5,6
           Medi/MF Pentax 645 45-85/4,5
Grade: 2.2 35mm/MF Pentax SMC-A 70-200/4
           Medi/MF Pentax 645 80-160/4,5
           35mm/MF Pentax SMC-A Zoom 80-200/4,7-5,6