About Crop-Factor


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polo_pro10

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#1
I'm a newbie in DSLR, so I would like to ask what is the total length if my camera is a 1.6x crop-factor & I'm using a 300mm lens. So how do u calculate??? :dunno:

Thanks for all replies. :D
 

espn

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#2
Simple. Your len is a 300mm focal length. So of course it's a 300mm focal length.
 

espn

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#4
latmo said:
300 x 1.6
so it is 480mm
Nope, it is not. A 300mm len is 300mm, how can it be 480mm? Unless you're using a teleconverter, else the distance remains the same.
 

Gymrat76

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May 10, 2004
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#5
latmo said:
300 x 1.6
so it is 480mm
Nope, its like espn says, a 300mm lens, is a 300mm lens. You don't magically get a longer focal range just because you're using a DSLR. What you do get is the field of view equivalent to a 480mm lens.
 

polo_pro10

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#8
Gymrat76 said:
Nope, its like espn says, a 300mm lens, is a 300mm lens. You don't magically get a longer focal range just because you're using a DSLR. What you do get is the field of view equivalent to a 480mm lens.
So does that mean tat u will get 480mm when on LCD display or printing out........???
 

Adzz

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#9
i suppose u get an image of 480mm equalvient. only FOV changed, focal length changed.
 

espn

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#10
Adzz said:
i suppose u get an image of 480mm equalvient. only FOV changed, focal length changed.
Nope, focal length didn't change, your focal view angle changed.
 

Stoned

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May 7, 2004
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#14
Yup although technically you are not getting a 480mm image, you get what appears to be a 480 mm image. Its similar to the crop tool in photoshop if you could look at it that way...
 

Adzz

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#15
espn said:
Nope, focal length didn't change, your focal view angle changed.
oops. typed wrongly. hehe. yea. focal length unchanged. silly me.
 

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