DoF is the same for a particular focal length, aperture and subject distance regardless of format size.

With cropped sensors if you want to have the same framing you need to increase you distance to subject and therefore DoF.

It is the increase in distance from the subject that means that for an equivalent field of view you gain 1 stop DoF.

So the gain in DoF is really an increase in subject distance if you maintain the same framing and that is why you get a change in DoF, you are focusing further than you would normally have to. If you want smaller DoF you need to be closer to your subject for any given focal length. Larger formats allow you to be closer as the FoV is wider.

Any less confusing?

I remember this coming up before on the lauch of the K-5. There seems to be some extra data in the RAW file that some programs interpret as pixels to the left of the image. They may be part of the NR mechanism, additional pixels cut from access to preserve the correct ratio or something else.

Not a problem with the files or the camera, just software.

Choose last page of thread and press End button on keyboard, problem solved.

On Android and Windows Phone Opera has a scroll to bottom/top button so that is easy enough too.

Perhaps, I found the 300 satisfactory for sailing. Don't know how the 60-250 compares.

Probably not good enough for people or objects coming towards you fast though.

I don't find the 18-135 any faster than the 16-50 or 50-135. In fact the short focus throw of the 16-50 probably makes it faster.

I would have never bought the 18-135 except that it was in the shop as part of the kit and I thought I would have a look.

First impressions were very good. Build quality as good and as my DA* lenses. Smooth zoom ring, stiff at first but loosened after a bit of use. It is still fairly stiff, no creep bit no longer required extra effort to zoom. It is compact, sealed, fairly light, I would say they got the ergonomics just right.

Image quality seemed good in camera, bokeh is pleasing. Sharpness probably isn't that good but it is quite a zoom range and very compact.

AF is fast silent and accurate even in low library on the K10D. In fact, seems to focus better in low light on said K10D than the faster DA* lenses, possibly due to extra DoF.

K-5 focusing though is amazing, especially CAF and Live View. I can imagine hat paired with the 60-250 it would make a very good sports camera.

Both the K-5 and 18-135 are very good.

Only did a partial charge on the battery in mine today. Still showing as full after150 shots, 10 mins of video, reviewing occasionally and some live view. I do have auto review set to off as I have always found that doubles my battery life.

Have not read the manual, working it out as I go. Picked up a K-5 and 18-135 today from a local shop and traded in some unused bits.

I did think he manual was a bit of a silly size though, especially as there is loads of room in the kit box that includes the 18-135.

Going to leave SR on myself, too much effort to menu mine to find the setting.

Thankfully I didn't have to charge the battery at the nice man at LCE charged it while I went home to get my trade in gear. Been shooting the America's Cup with K-5+DA*300 and K10D+18-135.

With prices like this it is tempting to get one!

This will be good for bird and astro photographers. Would like to see results from the DA*300!

Wonder if it will work with the GPS unit too...

Let's see...

1 is a 4MP crop

2 is 10MP full frame

3 is a 7MP crop

All three are probably between 2m and 1.4m (min focus distance).