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  1. #11
    Join Date
    Jan 2008
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    19
    Well the price is still under $200 so it works and I assume no fringing right?
    Its so hard to make a decision but seeing that I have two point and shoot cameras it will make little sense to not get something with REAL low light capabilities right?

  2. #12
    Join Date
    Mar 2005
    Location
    Rochester,New York
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    464
    Quote Originally Posted by shaolin95 View Post
    Well the price is still under $200 so it works and I assume no fringing right?
    Its so hard to make a decision but seeing that I have two point and shoot cameras it will make little sense to not get something with REAL low light capabilities right?
    The Sigma is very well reviewed. If you get one,just make sure its the APO version. All the ultra zooms suffer from noisy images above 400 iso..this is were DSLR shine.


    http://www.ephotozine.com/article/Si...6-APO-DG-Macro
    Last edited by pas49ras; 01-07-2008 at 11:08 AM.
    Doug
    Pentax K200D,Pentax 18-250,Sigma 70-300 APO DG macro
    Kodak Z915
    http://picasaweb.google.com/pas49ras

  3. #13
    Join Date
    Jan 2008
    Posts
    19
    Great pics but one question....is that 300mm the equivalent of the 18x on the 560? Somehow I dont see the same magnification but then again its going from 70mm to 300mm not from 0 to 18x...

  4. #14
    Join Date
    Jun 2005
    Location
    Sydney, Australia
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    1,680
    Quote Originally Posted by shaolin95 View Post
    Great pics but one question....is that 300mm the equivalent of the 18x on the 560? Somehow I dont see the same magnification but then again its going from 70mm to 300mm not from 0 to 18x...
    The x18 of the Olympus refers to the focal range 27-486mm (therefore, x18)
    Canon 5D MKlll & Canon 50D
    Canon 70-200mm f/2.8L USM | Canon EF-S 17-55mm f/2.8 IS USM | Canon EF-S 10-22mm f/3.5-4.5 USM | Canon 100mm f/2.8 USM Macro | Canon 70-300mm f/4-5.6 IS USM | Canon 50mm f/1.8 | Sigma 17-70mm f/2.8-4.5 | Canon 430EX Flash | Lowepro Mini Trekker AW | Lowepro Toploader 65 AW | Lowepro Slingshot 200AW | Kata 3n1-10

    Panasonic Lumix FZ200
    Panasonic Lumix TZ7 (aka ZS3)
    Panasonic Lumix FT3 (aka TS3)

    Ali Baba.....the Thief of Bad Gags

  5. #15
    Join Date
    Jan 2008
    Posts
    19
    Quote Originally Posted by Honest Gaza View Post
    The x18 of the Olympus refers to the focal range 27-486mm (therefore, x18)
    I really need to learn about this...is that book about Understanding Exposure good to learn about this?
    So I guess my question is...is that 300mm lens able to get me as close to the image as the one in the Oly? I guess not but I could be wrong as happens most often when I talk about cameras! :-)

  6. #16
    Join Date
    Jun 2005
    Location
    Sydney, Australia
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    1,680
    Quote Originally Posted by shaolin95 View Post
    I really need to learn about this...is that book about Understanding Exposure good to learn about this?
    So I guess my question is...is that 300mm lens able to get me as close to the image as the one in the Oly? I guess not but I could be wrong as happens most often when I talk about cameras! :-)
    In reference to your original thread topic...Pretty damn close.

    The Olympus suggests a 35mm equivalent of 486mm at maximum zoom.
    Because of the x1.6 crop factor, the Canon XTi will portray a 300mm focal length as a 35mm equivalent of 480mm (300 x 1.6)

    The Pentax K100 has a crop factor of x 1.5, therefore, it will portray the 300mm focal length as 450mm.
    Last edited by Honest Gaza; 01-07-2008 at 03:04 PM.
    Canon 5D MKlll & Canon 50D
    Canon 70-200mm f/2.8L USM | Canon EF-S 17-55mm f/2.8 IS USM | Canon EF-S 10-22mm f/3.5-4.5 USM | Canon 100mm f/2.8 USM Macro | Canon 70-300mm f/4-5.6 IS USM | Canon 50mm f/1.8 | Sigma 17-70mm f/2.8-4.5 | Canon 430EX Flash | Lowepro Mini Trekker AW | Lowepro Toploader 65 AW | Lowepro Slingshot 200AW | Kata 3n1-10

    Panasonic Lumix FZ200
    Panasonic Lumix TZ7 (aka ZS3)
    Panasonic Lumix FT3 (aka TS3)

    Ali Baba.....the Thief of Bad Gags

  7. #17
    Join Date
    Dec 2006
    Location
    God's Country - Australia
    Posts
    10,424
    Quote Originally Posted by shaolin95 View Post
    I really need to learn about this...is that book about Understanding Exposure good to learn about this?
    So I guess my question is...is that 300mm lens able to get me as close to the image as the one in the Oly? I guess not but I could be wrong as happens most often when I talk about cameras! :-)
    yes a 300mm lens will get you pretty much as close on a k100d as the oly, (300mm x 1.5 crop = 450mm). i think you are confusing focal lengths to the range of a lens. the 18x thing refers to the ratio of the longest range of the zoom to the shortest range. for example: 18-55 is a 3x zoom, (55/18). the 70-300 is a 4x zoom, (300/70).

    understanding exposure won;t help you understand alot of those things and really yiu don;t need to know most of that stuff after you buy a camera. it is an exceptional learning tool for understanding expsoure and taking better photos. it's not really realted to all the tech stuff. more aout shutter speeds, apertures, iso settings etc.

    i also concur with the above comments inregards to the sigma apo 70-300.
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  8. #18
    Join Date
    Jan 2008
    Posts
    19
    Excellent info guys. I was totally confusing that indeed! So that book is nice but wont help me with the tech stuff...any books or websites with good info?
    I am going with the Pentax almost 90% sure now thank to all the info here.

  9. #19
    Join Date
    Jan 2008
    Posts
    19
    A few more questions my friends...

    One thing I liked about the Olympus is the built in Panorama assist...how hard will it be to create panorama shots with the K100D? Do I get the same or better by just taking the pics and using a pc software to put them together?

    Another thing, I read a lot about the Face Recognition...is that a mute point since the K100D has so good high ISO performance thus no need to "optimize" faces?

  10. #20
    Join Date
    Jul 2004
    Posts
    4,173
    Face recognition is to make sure the faces are in focus. It has little to do with image quality otherwise. It doesn't do much to "optimize" faces.

    There are lots of panoramic assist software packages out there. I wouldn't worry about the quality of that versus the in-camera version.

    And it's "moot" point.

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