[gaweidert]

Thanks! So 4" = 100mm plate. Did you find it balances well in the center of the plate or did you offset?

With the zoom the center of gravity shifts a bit as you zoom. Plus the weight of the camera makes a difference If you attach a K-S1 to the lens the balance point will be different than a K3. Or the new full frame model. The 100mm plate will give you more options. I do use a smaller plate on my 70-200 f2.8 Tamron.

[jatrax]

Thanks. I found a 100mm plate but the holes and slot do not line up so I just ordered a 115mm. Hopefully that will line up correctly.

[noelpolar]

Stalked this "reader in the wild" a while back......


Reader in the wild by Noel Leahy, on Flickr

[christiandre]

450mm - f5.6 - 1/400 - ISO 400

[redpit]

Finally some aviation pics from last Axalp airshow. These are all taken with the DFA 150-450 on my K-5IIs. More pictures can be found here:
https://www.flickr.com/photos/redpit-photography/albums/72157662422731729/with/23781832249/

There are 3 out of the 24 that are taken with the Bigma 50-500 on my K-5 (see the comments).

[normhead]

I love the location of these images, it is so different seeing airplanes with a background other than air. #2 actually made me feel dizzy. Thanks for posting.

[redpit]

Thank you my friend!

it is so different seeing airplanes with a background other than air.

Actually, thats what I'm interested in too and I'm always trying to find ways or chances to get such pics

[RobG]

Finally some aviation pics from last Axalp airshow. These are all taken with the DFA 150-450 on my K-5IIs.

What a fantastic shot of the Pilatus! What was your impression of the 150-450 as a lens for an Airshow? One of the main things I'm keen to hear about is focus performance?

[redpit]

What a fantastic shot of the Pilatus! What was your impression of the 150-450 as a lens for an Airshow? One of the main things I'm keen to hear about is focus performance?

Thank you! I think the DFA 150-450 is great for air shows and the AF is fast, accurate and doesn't hunt. I leave the limiter to the 6-oo to be even faster and with the K-5IIs the results are great concerning AF accuracy. Even in pics with busy backgrounds other than skies (where the AF tracking of the K-5IIs is lacking) once you had locked the plane beforehand it usually had no problem in giving some tack sharp images, though less keepers than under ideal conditions! I believe from what I've seen and read that the K-3 series must be a clear improvement in the AF performance. I'm waiting for the FF AF performance to decide what my next camera will be...

[RobG]

Thank you! I think the DFA 150-450 is great for air shows and the AF is fast, accurate and doesn't hunt. I leave the limiter to the 6-oo to be even faster and with the K-5IIs the results are great concerning AF accuracy. Even in pics with busy backgrounds other than skies (where the AF tracking of the K-5IIs is lacking) once you had locked the plane beforehand it usually had no problem in giving some tack sharp images, though less keepers than under ideal conditions! I believe from what I've seen and read that the K-3 series must be a clear improvement in the AF performance. I'm waiting for the FF AF performance to decide what my next camera will be...

Good to know, thanks! I tried the lens in the showroom in Tokyo on my own K3, but static subjects really didn't challenge the AF. I don't think I experienced hunting once, which sounds similar to what you describe. Even so, the focus limiter would make that much less painful than the DA*300.

[riseform]

Female Anna's from the weekend

[noelpolar]

Female Anna's from the weekend

Very nice..... wide open at 450 as well!

[RobG]

Female Anna's from the weekend

Wow! You must have been pretty close?

[christiandre]

450mm, ISO800, f6.3, 1/500s, hand held

[Zygonyx]

Hi all, excellent pictures on the last pages !

Just passing, i'm lacking time and good light during this period of winter...

Taken through a window with K-S1... @410mm f/7.1