If I ever run into a copy of Pentax DA (DA-L) 55-300mm, that will be a great replacement for my Tamron 70-300mm f/4.0-5.6. For all those thinking of K-x, it is best to get the DA-L 18-55 and DA-L 55-300mm combo. But for enthusiast with great interest on video, I will suggest NOT to go for the DA-L lens with 55-300mm. As when I consider the use with video, the AF on video can greatly benefit from quick shift focus. That is after the start of the video recording and quick shift can allow one to adjust the focus manually while a customized button to disable or enable AF will work well in the scheme of quickly manual focusing as in still shot and video.
The AF in video is using the contrast detection. I have not researched into Phase detection and I don't even know if it is supported in K-x to make AF a bit faster. Though contrast detection appears slow, it works reasonably accurate but the AF can't be adjusted right after the start of recording. MF comes into play and quick shift focusing will greatly benefit the shooting if subject moves out of clarity in the shooting. So the DA version (not the DA-L) in 55-300mm or the limited DA will work well in the video.
The purple fringing in the Tamron 70-300mm f/4.0-5.6 is unfortunate. It would have been my better cheapo zoom had it shown less PF on the still pictures in high contrast areas. It takes very reasonable still shots with great sharpness but many of my test shots with K-x are not immune to purple fringing in f/5.6 and f/6.3. I should have attempted higher iso to engage in smaller aperture or use Av mode to have better control on PF
My boys love the show where the otter was the one stealing the money for the soda machine. It is very entertaining show and it goes with a lot of laugh and roar from the audience.
The White Beluga Whale is the next encounter for my visit. It is the gentle creature that you can see it in the kiss. It was a close encounter program in Seaworld and I happen to have Tamron zoom on the shots
The whale flips its body while letting the close encounter students to have individual photo. They should have hired me but my Purple Fringing was quite severe and I failed to get the job until I could upgrade with something better. Aperture in f/6.3. I should have upped the ISO for a smaller aperture
This shot was taken in front of a window and hence the poorer clarity. With a tap on the cheek, the whale will come up for a gentle kiss, that is a real kicker for me to see and take picture.
Shot with Sigma 17-70mm f/2.8-4.5 in a darker area of the aquarium
Impressions & Notes
Related:
The White Beluga Whale is the next encounter for my visit. It is the gentle creature that you can see it in the kiss. It was a close encounter program in Seaworld and I happen to have Tamron zoom on the shots
1/250 sec, f/5.6, 200mm, iso 250, 0 Ev
The whale flips its body while letting the close encounter students to have individual photo. They should have hired me but my Purple Fringing was quite severe and I failed to get the job until I could upgrade with something better. Aperture in f/6.3. I should have upped the ISO for a smaller aperture
1/250 sec, f/6.3, 260mm, iso 640, 0 Ev
This shot was taken in front of a window and hence the poorer clarity. With a tap on the cheek, the whale will come up for a gentle kiss, that is a real kicker for me to see and take picture.
Shot with Sigma 17-70mm f/2.8-4.5 in a darker area of the aquarium
Impressions & Notes
- The purple fringing is a bummer with the Tamron zoom; otherwise, it has produced quite a number of great shots with good sharpness for me
- The Tamron zoom does not have any quick shift focusing. I think in general quick shift focusing in DA (not DA-L) lenses will benefit video recording as it can allow one to adjust for manual focusing after the start of video recording. A current pitfall in k-x video that doesn't AF after the start of video.
- While I use most with P mode in the trip with K-x, I had to change to Av mode for better leverage on f/8.0 and smaller and push the iso range to fit the shutter speed.
Related:
- Pentax K-x White Seaworld Part 2
- Pentax K-x White arrival
- Pentax K-x White HD Test Videos
- Pentax K-x White In Disneyland
- Pentax K-x High ISO Habit
- Pentax 1-lens choice -- Sigma 17-70mm f/2.8-4.5
- Pentax K-x White and DA limited Lens
- Pentax K-x White with DA/FA limited Lenses
- Tamron 70-300mm Di LD Macro f/4.0-5.6
- Purple Fringe on Tamron 70-300mm Di LD Macro f/4.0-5.6
- Hin's Camear Gear
3 comments:
nice photos I love it
espectialy dolphin is very lovely.
thanks
Thank you for the visit and comment.
i enjoy reading yr blog..keep on posing
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