SMC Pentax-DA 18-55mm AL WR

18mm f3.5



18mm f3.5



18mm f8



35mm f4.5



35mm f4.5



35mm f8



55mm f5.6



55mm f5.6



55mm f8 By this time image isn't too bad.



The sensor stains are simulated!

Comment by JAK posted on Wondering what the field of view of the DA lenses is on the K-1? at 01/05/2016 - 17:04

SMC Pentax-DA 40mm f2.8 XS (The mini lens produced to pair with the K-01.)

At f2.8



At f2.8 - Not that much different from the 35mm plastic fantastic.



At f8 - hard to complain at that really - who would believe it!

Comment by JAK posted on Wondering what the field of view of the DA lenses is on the K-1? at 01/05/2016 - 16:12

SMC PentaxDA 35mm [email protected] (The budget plastic fantastic.)



At f2.4 - Some vignetting which is correctable if necessary, but it improves on stopping down.



By f8 vignetting is much less of an issue.

Comment by JAK posted on Wondering what the field of view of the DA lenses is on the K-1? at 01/05/2016 - 15:55

An interesting one this: Samsung 10-17mm@14mm (Samsung's variant of the Pentax version.)
The field of view is quite useable from 14-17mm and comparable to using the lens on APSC, The walls on either side are at 90 degrees so FOV is wider than that. Zooming out to 10mm makes the image smaller (to fit the APCS-C sensor size) but content doesn't significantly change.

Comment by JAK posted on Wondering what the field of view of the DA lenses is on the K-1? at 01/05/2016 - 14:23

Another comparison - similar photo with the SMC Pentax-DA* 300mm [email protected]

Comment by JAK posted on Wondering what the field of view of the DA lenses is on the K-1? at 01/05/2016 - 13:47

SMC Pentax DA 55-300 ED@55mm




SMC Pentax DA 55-300 ED@98mm

SMC Pentax DA 55-300 ED@300mm



A real life photo at 300mm: SMC Pentax DA 55-300 ED@300mm f7.1


(Sorry about the weather!)

Again all at the full frame setting.

Comment by JAK posted on Wondering what the field of view of the DA lenses is on the K-1? at 01/05/2016 - 13:38

For comparison a dedicated full frame lens:-

SMC Pentax-FA 50mm 1.4

Comment by JAK posted on Wondering what the field of view of the DA lenses is on the K-1? at 01/05/2016 - 13:07

Comment by JAK posted on Wondering what the field of view of the DA lenses is on the K-1? at 01/05/2016 - 12:51

A selection of blank images to show amount of vignetting at full aperture with DA lenses on the K-1

SMC Pentax-DA 14mm f2.8 ED(IF)



SMC Pentax-DA 15mm f4 ED AL Limited



SMC Pentax-DA 21mm f3.2 AL Limited



SMC Pentax-DA 35mm f2.8 Macro Limited



SMC Pentax-DA 50mm f1.8



SMC Pentax-DA 70mm f2.4 Limited



I'll add some others later

Comment by JAK posted on Wondering what the field of view of the DA lenses is on the K-1? at 01/05/2016 - 12:42

Comment by JAK posted on Pentax K1 preview at 29/04/2016 - 19:55