Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-14-2009, 03:59 PM   #16
Veteran Member
netuser's Avatar

Join Date: Oct 2008
Location: Azores Islands, Portugal
Photos: Gallery
Posts: 2,241
Original Poster
QuoteOriginally posted by asdf Quote
Yes.

------
Thanks

Then DA*300 just rocks

06-14-2009, 04:21 PM   #17
Veteran Member




Join Date: Jan 2009
Location: Canada
Posts: 1,255
QuoteOriginally posted by netuser Quote
Thanks

Then DA*300 just rocks
Check this out:

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/31629-da-lens-...ts-thread.html

Note that a "full frame" lens will always seem to perform better on a cropped sensor, because you're cropping its "sweet spot."

Here's a bit of wild speculation: in two years time, 35mm sensors will become so cheap that Pentax will be forced to make a full frame camera. Pentax refuses to make a >1500USD DSLR, but in a couple of years we'll have full frame cameras for around 1500USD.
06-14-2009, 08:20 PM   #18
Veteran Member
palmor's Avatar

Join Date: Dec 2006
Location: North of Boston, MA
Posts: 798
QuoteOriginally posted by netuser Quote
I tried today the Canon EF 400mm f/5,6 L USM on the 40D body and made some great shots.


Besides the focal lenght I also liked the silent/speed of the ultrasonic motor.

taking into consideration my initial question, which one should I get ? DA ? FA ?

DA seems not long enought, FA seems not to fast focus since it doesn't have SDM and it's noisy ... noise is not very good for birds

Please advice.

Thanks
So the SDM motors of Pentax do not increase focus speed, they are just silent focusing. So don't be caught up in that aspect of the screw drive (FA* 400) vs SDM (DA*300).

I have never used the FA 400 but I would bet it is faster focusing then th eDA*300+TC is. While this combo works (and IQ is great IMO) it can hunt and for birding focus just a little bit too late. Like I mentioned though I believe the IQ is fantastic and is the combo I currently use.

Here are some threads were I posted examples of this lens and most of them are with the Kenko 1.5x TC

https://www.pentaxforums.com/forums/post-your-photos/62693-snowy-egret.html

https://www.pentaxforums.com/forums/post-your-photos/60514-red-winged-blackbird.html

https://www.pentaxforums.com/forums/post-your-photos/59249-just-chickadee-titmouse.html

https://www.pentaxforums.com/forums/post-your-photos/46102-i-love-usable-iso-...other-one.html
06-15-2009, 03:29 AM   #19
Veteran Member
netuser's Avatar

Join Date: Oct 2008
Location: Azores Islands, Portugal
Photos: Gallery
Posts: 2,241
Original Poster
QuoteOriginally posted by palmor Quote
So the SDM motors of Pentax do not increase focus speed, they are just silent focusing. So don't be caught up in that aspect of the screw drive (FA* 400) vs SDM (DA*300).

I have never used the FA 400 but I would bet it is faster focusing then the DA*300+TC is. While this combo works (and IQ is great IMO) it can hunt and for birding focus just a little bit too late. Like I mentioned though I believe the IQ is fantastic and is the combo I currently use.

...
Too bad SDM motors is only for the silent and not for the speed
DA*300+TC keeps being silent ? b

06-15-2009, 04:29 AM   #20
Veteran Member
netuser's Avatar

Join Date: Oct 2008
Location: Azores Islands, Portugal
Photos: Gallery
Posts: 2,241
Original Poster
QuoteOriginally posted by netuser Quote
Too bad SDM motors is only for the silent and not for the speed
DA*300+TC keeps being silent ? b
QuoteQuote:
Notes: Supersonic motor, Quick-shift focus, SP (Super Protect) coating, Filter window, Detachable tripod mount
I took that from pentax website. Supersonic motor is no better/fast than the old way of the screw drive ?
06-15-2009, 06:11 PM   #21
New Member




Join Date: May 2007
Location: Los Angeles
Posts: 6
QuoteOriginally posted by netuser Quote
I took that from pentax website. Supersonic motor is no better/fast than the old way of the screw drive ?
Quiet: yes.
Faster: no systematic relationship.

Reliable: Frankly, the SDM seems to be a bit of a risk. The micromotor has given many people issues with long term reliability...not necessarily in the 300mm, but it seems to be one of the common factors with a lot of complaints.

Fast Example
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/58774-anyone-e...5-problem.html
07-02-2009, 03:32 AM   #22
Veteran Member
netuser's Avatar

Join Date: Oct 2008
Location: Azores Islands, Portugal
Photos: Gallery
Posts: 2,241
Original Poster
Don't want to spend money and then the SDM lens is not good

BUT don't want to buy FA 400 and then a couple of months later Pentax has DA* 400 f5.6 .....
07-02-2009, 06:56 AM   #23
Veteran Member




Join Date: Dec 2006
Location: Ontario
Posts: 750
The FA*400mm f/5.6 is a decent lens. I've used and abused mine for the last couple of years and the only time it hasn't yielded sharp photos is when there is a touch of motion blur or a focus error on my part.

I've also used my 400 paired up with a Tamron 1.4x teleconverter and that produces decent results as well and will AF in good light, though it's a slower focus.

As for AF speed, the 400 is decent in the speed department, but it's noisy. I'm expecting with the k-7 coming out, the AF speed will improve a bit more on that body, but can only guess at this point. I don't have a DA*300 to compare to though.

I believe the FA*400 is a fair bit smaller than the EF 400 f/5.6, but the Pentax version isn't as sharp as the Canon when both are used with good long-lens technique. And again, the Pentax 400 is pretty loud when focusing.

Here's a shot using the k10d and FA*400


And here's one where I cropped about 1/2 of the image to get the final framing


07-02-2009, 07:34 AM   #24
Senior Member




Join Date: Oct 2007
Location: Washington
Photos: Gallery
Posts: 248
Here is one I took with my DA* 300 @ F5.6 and ISO 400. This is straight JPEG out of the camera - no PP. I really like the bokeh.

07-02-2009, 08:14 AM   #25
Veteran Member
netuser's Avatar

Join Date: Oct 2008
Location: Azores Islands, Portugal
Photos: Gallery
Posts: 2,241
Original Poster
QuoteOriginally posted by pentaxman Quote
Here is one I took with my DA* 300 @ F5.6 and ISO 400. This is straight JPEG out of the camera - no PP. I really like the bokeh.

Great images

I'm now in the fence, for a while, hoping for a new DA* 400 ....
07-02-2009, 08:56 AM   #26
Moderator
Site Supporter
Blue's Avatar

Join Date: Jun 2008
Location: Florida Hill Country
Photos: Gallery | Albums
Posts: 17,212
For what its worth, I have an A 400mm f5.6 lens and I think it is optically better than the FA 400mm f5.6. The only advantage of the FA version is AF. As a matter of fact, I have a Tokina 400mm f5.6 that I think is as optically good as the FA 400. Granted that is based on slide film work.
07-25-2009, 03:52 PM   #27
Veteran Member
netuser's Avatar

Join Date: Oct 2008
Location: Azores Islands, Portugal
Photos: Gallery
Posts: 2,241
Original Poster
Got DA*300
07-25-2009, 05:26 PM   #28
Veteran Member
Raybo's Avatar

Join Date: Dec 2007
Posts: 871
QuoteOriginally posted by kevindt Quote
400 mm focal length is 400 mm focal length on any camera. The sensor is about 2/3 of the size of 35 mm film, so the picture looks like a 35 mm film shot cropped to show the center 2/3 and then magnified to the size chosen.

I cannot comment much on the FA400 (other than I'd love to try one ), but I do have a DA*300 and a Sigma 150-500 HSM zoom. The Sigma is a big, heavy beast to carry but does work well. Note that this one does have HSM. I do not find that it beats the DA*300 and a Tamron 1.4x TC for IQ, but it is pretty close.

Here are a few bird shots with the DA*300 on the K20D (no TC)

Western Meadowlark


Not sure who


Bald Eagle (the zoom would have been nice - I underestimated wingspan while waiting for takeoff )


Killdeer


And with the Sigma

Marsh Wren (one of our tinier birds) - Sigma at 340mm


California Quail - Sigma at 370mm


Western Kingbirds - Sigma at 400mm

I'd just to to say........... very nice images kevindt !
07-26-2009, 11:54 AM   #29
Pentaxian




Join Date: May 2007
Location: WW community of Pentax users
Photos: Gallery | Albums
Posts: 2,165
QuoteOriginally posted by netuser Quote
Got DA*300
Congratulations!
Be sure to enjoy it
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
da 300 mm, k-mount, lens, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Attention Tamron 70-200 f/2.8 and Pentax 300/f4 SDM users- need urgent help Aditya Panda Pentax SLR Lens Discussion 22 11-14-2008 03:46 PM
DA 1.4x rear convertor sdm w/ DA 300? rdrum76 Pentax SLR Lens Discussion 8 10-28-2008 12:52 PM
New SDM rear TC, SDM only or SDM + screw drive? morfic Pentax SLR Lens Discussion 1 10-01-2008 08:23 AM
PMA: DA*200/300 SDM, 35mm Macro ltd, New Flash! nosnoop Pentax News and Rumors 38 02-28-2007 12:22 PM



All times are GMT -7. The time now is 03:04 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top