They look very close, but there are minor differences, probably due to sample variation or measurement method differences.
Credit: Love Penta. XYZ (Japanese)
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
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
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
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
Saturday, September 19, 2015
Friday, September 18, 2015
Official! Pentax FF to Come Spring 2016
http://www.pentax.com/jp/pentaxff/index.html
It is yet delayed once again! :-(
The good thing is the "Pentax" web domain is revived again! :-D
Tuesday, September 01, 2015
My Pentax FF is Already Here! ;-p
My Pentax Full Film body is almost 15 years old now. And, I am right here waiting for the Pentax Digital Full Frame body for at least 13 years! :-(