01-10-2015, 08:04 AM
Two points have to be made clear here,
Firstly, the reliability of the Pentax SDM silent drive motors, it's one of "the" most common gripes on the forums, a good proportion of Pentaxians "won't" buy them anymore because of the breakdowns at $250-300 a pop to repair, take the DA* SDM lenses out of the equation and you have a smaller choice of the most important FLs. Hence people look to TPMs... Pentax has "never" admitted the problem, there are now new motors and new boards for repairs, however, there are a lot of lenses still sitting on shelves in warehouses waiting to be sold and the complaints are still coming in.
That is why new lenses all have DC motors! AFAIK the last one to have an SDM was the DA60-250mm, the DA18-270 has Tamrons own motor and I have never seen a post of complaint.
Secondly,
The availability of third party lenses in the Pentax mount, Tamron has all but abandoned Pentax with it's newer lenses and Sigma only throw us the odd one here or there, this can become galling when reading glowing reviews of the latest "can't have" lenses. Hence my S/H Nikon D7100!
I think these are points worth mentioning!
Firstly, the reliability of the Pentax SDM silent drive motors, it's one of "the" most common gripes on the forums, a good proportion of Pentaxians "won't" buy them anymore because of the breakdowns at $250-300 a pop to repair, take the DA* SDM lenses out of the equation and you have a smaller choice of the most important FLs. Hence people look to TPMs... Pentax has "never" admitted the problem, there are now new motors and new boards for repairs, however, there are a lot of lenses still sitting on shelves in warehouses waiting to be sold and the complaints are still coming in.
That is why new lenses all have DC motors! AFAIK the last one to have an SDM was the DA60-250mm, the DA18-270 has Tamrons own motor and I have never seen a post of complaint.
Secondly,
The availability of third party lenses in the Pentax mount, Tamron has all but abandoned Pentax with it's newer lenses and Sigma only throw us the odd one here or there, this can become galling when reading glowing reviews of the latest "can't have" lenses. Hence my S/H Nikon D7100!
I think these are points worth mentioning!
Quote: Pentax has the (mostly) complete lines of lenses, but gets criticized for being boring. It's just funny to contrast the arguments against them.