All Forum Comments
Comment by Anvh posted on Another pointless thread at 24/11/2010 - 08:23
According to the user on the other forum the motor is totally silent and MUCH faster than SDM. The focus ring is also close to the camera body rather than in the usual place.
I am still tempted by it, but feel I'd have to sell something to buy it, and I don't want to sell any of the lenses at the mo.
The obvious one to go would be my little used 50-135*, but I know it makes no sense selling a * to buy a kit lens really. Alternatively I could sell the 17-70 I guess. I probably wouldn't miss that 1mm at the wide end - or would I?
If it's very short than that might be the reason.
The DA*16-50 for example is much faster than the DA*50-135 but the focus throw of the DA*16-50 is 1/2 or 1/3 from the DA*50-135.
Just throwing something out there.
Pentax have said they will keep using SDM in the DA* lenses so they must preform well enough apparently
Comment by Anvh posted on 18-135mm DA WR at 24/11/2010 - 08:20
The DC motor is some variation of SDM
I know there is a patent out there for a brushless DC motor but Pentax or anyone else has not yet confirmed that that motor is used in the DA 18-135mm WR.
The only thing i can find from Pentax is Direct Current (DC) motor supports quick, quiet autofocus operation but all motors used inside the camera are direct current because it only has DC power from the battery so that doesn't say much.
Since you said it's a variation of the SDM does that mean it's an ultrasonic motor?
Comment by Anvh posted on 18-135mm DA WR at 24/11/2010 - 08:18
You can also place the task bar at the side but I'm not used to that but that's also an option.
Comment by Anvh posted on Windows 7 and PSE7 at 24/11/2010 - 08:08
So if you're making photos with SR on a tripod and one (out of a 100) is fuzzy then SR might be that caused it.
Comment by Anvh posted on What's causing this? at 24/11/2010 - 08:07
The DC motor is some variation of SDM
Comment by Anvh posted on 18-135mm DA WR at 23/11/2010 - 15:18
Comment by Anvh posted on Another pointless thread at 23/11/2010 - 15:12
With Lightroom you've the option to automatically convert RAW files to DNG when you import them from SD card so it's less of a hassle that way, without it i wouldn't have done it either.
Comment by Anvh posted on K5 PEF or DNG? at 23/11/2010 - 15:08
Normally I'm the one that miss the joke
Comment by Anvh posted on K5 PEF or DNG? at 23/11/2010 - 14:22
I did DL Adobe's DNG prog, and briefly tried converting PEFs to compacted DNGs, but it was too much hassle.
Comment by Anvh posted on K5 PEF or DNG? at 23/11/2010 - 14:09


Back to beer again, what are the better pub songs in England?
We don't waste drinking time with songs Stefan.
That means that in 90 days I could be out of a job, still it'll give me more time to take photos.