Support Cameralabs by shopping at our partner stores or donating via Paypal
 






Follow my RSS feed at Camera Labs RSS Feed
 
  Latest camera reviews

Sony Cyber-shot H400
Canon ELPH 340 IXUS 265
Canon G7X
Nikon P530
Canon SX520 HS
Canon G1 X Mark II
Panasonic Lumix FZ1000
Panasonic TZ60 / ZS40
Sony RX100 III review
Sony A3000 review
Canon EOS 1200D T5
Sony WX350
Nikon P600
Sony Alpha A5000
Sony Cyber-shot HX400V
Panasonic Lumix GH4
Panasonic TS5 FT5
Sony Alpha A6000
Canon SX700 HS
Canon SX600 HS
Olympus TOUGH TG2
Nikon AW1
Nikon D3300
Fujifilm XT1
Olympus STYLUS 1
Sony Cyber-shot RX10
Olympus OMD EM1
Panasonic Lumix GM1
Nikon D610
Sony Alpha A7
Nikon D5300
Canon PowerShot A2500
Sony Alpha A7r
Canon ELPH 130 IXUS 140
Nikon COOLPIX P520
Nikon COOLPIX L820
Canon PowerShot S120
Panasonic Lumix GX7
Canon SX510 HS
Canon PowerShot G16
Fujifilm X20
Panasonic FZ70 / FZ72
Canon EOS 70D
Sony RX100 II
Canon ELPH 330 IXUS 255
Panasonic Lumix GF6
Fujifilm XM1
Olympus EP5
Panasonic Lumix LF1
Panasonic TZ35 / ZS25
Olympus XZ2
Sony HX300
Panasonic Lumix G6
Sony HX50V
Fujifilm X100S
Canon SX280 HS
Canon EOS SL1 / 100D
Panasonic TZ40 / ZS30
Nikon D7100
Nikon COOLPIX A
Fujifilm X-E1
Canon EOS 6D
Nikon D5200
Panasonic Lumix GH3
Canon PowerShot S110
Panasonic Lumix G5
Sony NEX-6
Panasonic Lumix FZ200
Canon PowerShot SX50 HS
Nikon COOLPIX P7700
Olympus E-PL5
Canon EOS M
Panasonic TS20 / FT20
Canon PowerShot G15
Nikon D600
Nikon COOLPIX L810
Canon PowerShot D20
Sony RX100
Panasonic Lumix LX7
Canon SX500 IS
Fujifilm HS30 EXR
Sony HX200V
Panasonic FZ60 / FZ62
Canon 520HS / 500HS
Canon 110HS / 125HS
Nikon D800
Canon EOS T4i / 650D
Canon PowerShot A3400
Panasonic ZS15 / TZ25
Olympus E-M5
Nikon D3200
Fujifilm X-Pro1
Canon PowerShot A2300
Canon SX240 / SX260
Samsung NX200
Sony Alpha SLT-A77
Canon EOS 5D Mark III
Panasonic ZS20 / TZ30
Canon PowerShot G1 X
Sony NEX-7
Panasonic GX1
Olympus E-PM1
Nikon V1
Sony NEX-5N
Canon EOS T3 / 1100D
Canon EOS 600D / T3i
Nikon D7000
Canon EOS 60D
Canon EOS 550D / T2i
Canon EOS 7D

All camera reviews
 
 
   
 
  Best Buys: our top models
   
  Best Canon lens
Best Nikon lens
Best Sony lens
Best budget DSLR
Best mid-range DSLR
Best semi-pro DSLR
Best point and shoot
Best superzoom
Best camera accessories
   
 



Camera Labs Forum

Any questions, comments or a great tip to share? Join my Camera forum and let everyone know!
   
 
  DSLR Tips



 
Support me by shopping at Amazon!
Pentax DA 40mm and 70mm Limited lens review, tested with Pentax K10D Gordon Laing, April 2007
 
Pentax DA 40mm and 70mm lens Gallery with K10D

The following images were taken with the Pentax DA 40 and 70mm Limited Edition lenses, using the Pentax K10D. Unless otherwise stated, each image was recorded using the K10D's JPEG 10M *** mode and sRGB colour space, with Auto White Balance, Multi Segment metering, Natural Image Tone, and Sharpness, Contrast and Saturation set to their zero positions. The individual file size, exposure mode, shutter speed, aperture, ISO and lens details are listed for each image.

The crops are taken from the original files, reproduced at 100% and saved in Adobe Photoshop CS2 as JPEGs with the default Very High quality preset, while the resized full images were made in Photoshop CS2 and saved with the default High quality preset. The three crops are typically taken from far left, central and far right portions of each image.

Portrait: 2.01MB, Aperture Priority, 1/1500, f2.8, ISO 100, 40mm (equivalent to 60mm)

  With an equivalent focal length of 60mm and maximum aperture of f2.8, the 40mm Limited Edition lens makes a good option for close-range portraiture.

This shot was taken wide open at f2.8 and while not as sharp as the 70mm result below, it's still respectable and the background thrown nicely out of focus. At f2.8 even the shirt sleeve is beyond the depth-of-field.
     


Landscape: 3.68MB, Program, 1/500, f8, ISO 200, 40mm (equivalent to 60mm)

    Switching to a landscape shot taken at f8, the 40mm delivers a good, but not exceptional result.

This tallies with our other outside results with this particular lens which weren't as sharp as we'd hoped. Again, it's not bad, but the 70mm Limited Edition appears to out-perform it - see below.
     
   
     
   


Portrait: 2.03MB, Aperture Priority, 1/2000, f2.4, ISO 100, 70mm (equivalent to 105mm)

  The 70mm Limited Edition lens is ideally suited to portraiture with an equivalent focal length of 105mm and bright focal ratio of f2.4.

Here it's wide open at f2.4 and the background is considerably more blurred than the 40mm result above. The crops also reveal it to be sharper too, although beware there can be some coloured fringing even in the middle of the frame when wide open - see third crop.
     


Landscape: 2.93MB, Program, 1/400, f8, ISO 200, 70mm (equivalent to 105mm)

  Turn the 70mm Limited Edition to landscape subjects and it can deliver tighter compositions packed with detail.

The crops taken from left, centre and upper right areas are all sharp and detailed with no undesirable artefacts to speak of at f8.
     



If you found this review useful, please support us by shopping below!
All words, images, videos and layout, copyright 2005-2014 Gordon Laing. May not be used without permission.

/ How we test / Best Cameras / Advertising / Camera reviews / Supporting Camera Labs