Author Topic: A900 - Lens IQ Sample Images and Discussion  (Read 31836 times)

0 Members and 1 Guest are viewing this topic.

Offline winjeel

  • Past Moderator
  • Friend of DynaxDigital
  • *****
  • Posts: 5413
  • Gender: Male
  • Gelight
    • japanesephotos
    • JapanesePhotos
    • JapanesePhotos.Asia
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #45 on: January 22, 2009, 03:47:37 AM »
More generally, not A900 specifically, how do you feel about using macro lenses as a portrait lens? With mine, I've found it's just a bit to slow in focusing to use it as a handheld portrait lens (at least not without a studio flash or being in the bright outdoors)
JapanesePhotos.Asia; Some basic photographic how to's.
Sony the200, Minolta 28mm 2.8, 50mm 1.4, 70-300mm Gregarious, 100mm 2.8 macro.

Offline Stef.

  • Past Moderator
  • Friend of DynaxDigital
  • *****
  • Posts: 11520
    • Stef's photographs
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #46 on: January 22, 2009, 04:43:05 AM »
Winjeel- with the above two I have no problems what so ever to shoot portraits of my kids. I would not use them for sports or wildlife but with portraits as long as it is not kids that are running around I never had a problem. I actually found shooting the above two quite relaxing as in contrast to the CZ 135mm f1.8 they are soo much lighter. The CZ gives outstanding results without a doubt but shooting with the Sigmas is just easier weight wise.
I am at least happy that I can use them both on the A900 as with the Sony 50mm 1.4 I am not that convinced.
Stef.
Stef.'s photographs

[url=http://www.flickr.com/photos/15931938@N05/]flickr


"Dream as if you'll live forever- live as if you'll die today"

Offline Simon [aka springtide]

  • Article Contributor
  • Friend of DynaxDigital
  • *****
  • Posts: 2445
  • Gender: Male
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #47 on: January 22, 2009, 11:18:40 AM »

Thanks Stef for the test.  Good to know my 105 will do the job :)
NEX-7

flickr

Offline winjeel

  • Past Moderator
  • Friend of DynaxDigital
  • *****
  • Posts: 5413
  • Gender: Male
  • Gelight
    • japanesephotos
    • JapanesePhotos
    • JapanesePhotos.Asia
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #48 on: January 22, 2009, 01:18:40 PM »
Thanks for the thoughts.
JapanesePhotos.Asia; Some basic photographic how to's.
Sony the200, Minolta 28mm 2.8, 50mm 1.4, 70-300mm Gregarious, 100mm 2.8 macro.

Offline Rob aka [minolta mad]

  • Administrator
  • Friend of DynaxDigital
  • ******
  • Posts: 10061
  • Gender: Male
    • http://www.facebook.com/profile.php?id=1260183143#!/profile.php?id=1494244129
    • http://www.flickr.com/photos/robkendall/
    • http://www.redbubble.com/people/minoltamad
    • Westcountry Photographic
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #49 on: January 22, 2009, 05:03:18 PM »
More generally, not A900 specifically, how do you feel about using macro lenses as a portrait lens? With mine, I've found it's just a bit to slow in focusing to use it as a handheld portrait lens

I have found the Sony 100/2.8 to be just fine tracking our daughter, could be slow down to the 5D or alpha sweet, as the A700 is alot quicker focussing with all lenses over the 5/7D.


Rob

Offline winjeel

  • Past Moderator
  • Friend of DynaxDigital
  • *****
  • Posts: 5413
  • Gender: Male
  • Gelight
    • japanesephotos
    • JapanesePhotos
    • JapanesePhotos.Asia
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #50 on: January 22, 2009, 10:55:41 PM »
Interesting. Thanks, for the info.
JapanesePhotos.Asia; Some basic photographic how to's.
Sony the200, Minolta 28mm 2.8, 50mm 1.4, 70-300mm Gregarious, 100mm 2.8 macro.

Offline Stef.

  • Past Moderator
  • Friend of DynaxDigital
  • *****
  • Posts: 11520
    • Stef's photographs
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #51 on: January 23, 2009, 10:26:56 PM »
Sony A900 and Beercan (Minolta 70-210mm f4)

All shot:
RAW
AWB
ISO200
ACR
Slightly sharpened in PS

The first ones in this thread are at the wider end of 70mm

Sony-A900-Beercan-@70mm-@f4


Sony-A900-Beercan-@70mm-@f4-100%crop


Sony-A900-Beercan-@70mm-@f8


Sony-A900-Beercan-@70mm-@f8-100%crop


The long end @210mm follows in the next thread.
Stef.


Stef.'s photographs

[url=http://www.flickr.com/photos/15931938@N05/]flickr


"Dream as if you'll live forever- live as if you'll die today"

Offline Stef.

  • Past Moderator
  • Friend of DynaxDigital
  • *****
  • Posts: 11520
    • Stef's photographs
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #52 on: January 23, 2009, 10:30:20 PM »
Part II: Beercan

Sony-A900-Beercan-@210mm-@f4


Sony-A900-Beercan-@210mm-@f4-100%crop


Sony-A900-Beercan-@210mm-@f8


Sony-A900-Beercan-@210mm-@f8-100%crop


Stef.
Stef.'s photographs

[url=http://www.flickr.com/photos/15931938@N05/]flickr


"Dream as if you'll live forever- live as if you'll die today"

Offline winjeel

  • Past Moderator
  • Friend of DynaxDigital
  • *****
  • Posts: 5413
  • Gender: Male
  • Gelight
    • japanesephotos
    • JapanesePhotos
    • JapanesePhotos.Asia
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #53 on: January 23, 2009, 10:46:01 PM »
One problem with photographing indoors, is that everyone can see... wait... it... is! A Leica box! Wow! In terms of image quality, what's a girl like you doing with a lens like ours? ;)
JapanesePhotos.Asia; Some basic photographic how to's.
Sony the200, Minolta 28mm 2.8, 50mm 1.4, 70-300mm Gregarious, 100mm 2.8 macro.

Offline Stef.

  • Past Moderator
  • Friend of DynaxDigital
  • *****
  • Posts: 11520
    • Stef's photographs
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #54 on: January 23, 2009, 10:52:55 PM »
One problem with photographing indoors, is that everyone can see... wait... it... is! A Leica box! Wow! In terms of image quality, what's a girl like you doing with a lens like ours? ;)

Hehe- glad I did not shoot the other side of my studio... with all the enemies sitting there...
Stef.
Stef.'s photographs

[url=http://www.flickr.com/photos/15931938@N05/]flickr


"Dream as if you'll live forever- live as if you'll die today"

Offline Rob aka [minolta mad]

  • Administrator
  • Friend of DynaxDigital
  • ******
  • Posts: 10061
  • Gender: Male
    • http://www.facebook.com/profile.php?id=1260183143#!/profile.php?id=1494244129
    • http://www.flickr.com/photos/robkendall/
    • http://www.redbubble.com/people/minoltamad
    • Westcountry Photographic
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #55 on: January 24, 2009, 02:08:52 PM »
Seems very good at f/8 though f/4 ia a bit soft, but even so, just goes to show how good the beercan performs at 24MP


Rob

Offline Simon [aka springtide]

  • Article Contributor
  • Friend of DynaxDigital
  • *****
  • Posts: 2445
  • Gender: Male
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #56 on: January 24, 2009, 03:18:31 PM »
Well it arrived, the new Sigma 50mm f1.4 HSM in Sony mount!!!

Arrived at the shop this morning, just after dropping my Beercan off for repair/clean - sticky aperture probably caused from a little oil on the blades (or so I've been told!)

The Bad News
Just as I was paying I thought, lets take a look and give it a try - just in case (knowing what Sigma QC are like!)
Opened the box, pulled the lens out the EX padded case, pulled off the lens cap... and the front optics fell out of the lens onto the floor :(
Good old Sigma, seen and heard a few things in my time about lenses,  with bubbled in the glass, poor focusing etc.  But for the optic to just fall out I was a little shocked!


The Good News
Well, luckily (although this shop is not known for stocking Sony mount lenses) they had another two in the shop in Sony mount!  Tried the second and was amazed that the optics appear to be properly held together.  Build quality of the Sigma 50mm is pretty good if I'm honest (I guess there must have been a retaining clip missing on the first one!). Seems to have the usual EX look and feel to it.

Focusing is silent and seems accurate even in low light, but it's no speed freak!  It's not slow, just not super fast - not an issue for this type of lens.

Tried out a few test shots with the lens in the garden and kitchen (wide open) and all seems pretty good.  Pretty pleased with the Bokeh, although if I'm honest I'm no expert in this area.

Anyway, here are the few shots that I took:

#1

FULL@ http://farm4.static.flickr.com/3438/3222779876_6a3fab1178_o.jpg
Sony DSLR-A900, Exposure: 1/2000, Aperture: f/1.7, Focal Length: 50 mm


#2

FULL@ http://farm4.static.flickr.com/3349/3222784316_46f7cb40da_o.jpg
Sony DSLR-A900, Exposure: 1/40, Aperture: f/1.4, Focal Length: 50 mm


Overall seems a BIG improvement over my KM 50mm f1.7
« Last Edit: January 24, 2009, 03:48:04 PM by Simon [aka springtide] »
NEX-7

flickr

Offline Bill

  • Article Contributor
  • Friend of DynaxDigital
  • *****
  • Posts: 1543
  • Gender: Male
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #57 on: January 24, 2009, 03:44:35 PM »
Awesome, Simon!

Just a few hours ago I thought about posting to see if your new toy had arrived!  Focus looks to be perfect according to the second picture.  Bokeh looks very good.  Colors and sharpness are impressive.  If that is wide open, then the sharpness looks outstanding for f/1.4!

Congrats!

Bill
« Last Edit: January 24, 2009, 03:50:16 PM by Bill »
a77 + vertical control grip, a700 + vertical control grip,  24-70/2.8 SSM ZA,  70-200/2.8 SSM G,  HVL-F42AM flash

Offline Simon [aka springtide]

  • Article Contributor
  • Friend of DynaxDigital
  • *****
  • Posts: 2445
  • Gender: Male
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #58 on: January 24, 2009, 03:52:48 PM »
Awesome, Simon!

Just a few hours ago I thought about posting to see if your new toy had arrived!  Focus looks to be perfect according to the second picture.  Bokeh looks very good.  Colors and sharpness are impressive.  If that is wide open, then the sharpness looks outstanding for f/1.4!

Congrats!

Bill

Yes the second one is wide open.  Time will tell, but so far so good :)   [apart from the first lens I had!]
NEX-7

flickr

Offline Stef.

  • Past Moderator
  • Friend of DynaxDigital
  • *****
  • Posts: 11520
    • Stef's photographs
Re: A900 - Lens IQ Sample Images and Discussion
« Reply #59 on: January 24, 2009, 07:45:49 PM »
Simon- you might hate me in a second and I am only saying this as I know how much you care about the bokeh...(I am not btw) but I do think that the bokeh here is very similar to the one of my Sony...behind the milk bottle particularly to the left there are some very pronounced circles also on no.1 at the right hand corner? Just wondering- it would not bother me the slightest but knowing you a bit... did you do some other pics? Or do I get it wrong what the whole thing about bokeh is? I always thought once you see the light circles the bokeh is not soo good?
Stef.
Stef.'s photographs

[url=http://www.flickr.com/photos/15931938@N05/]flickr


"Dream as if you'll live forever- live as if you'll die today"