lenses


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Camm

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#1
Hi,

Understand lens is one very important factor in producing good quality photo. Can someone explain to me what is the difference between these two lens of 18-55mm compared to 18-135mm? Does that means that 18-55mm kit lens is not able to shoot far?

What are the other factors that I need to take note of if I want to have a picture of shallow DOF?
 

ExplorerZ

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Jan 9, 2006
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#2
Hi,

Understand lens is one very important factor in producing good quality photo. Can someone explain to me what is the difference between these two lens of 18-55mm compared to 18-135mm? Does that means that 18-55mm kit lens is not able to shoot far?

What are the other factors that I need to take note of if I want to have a picture of shallow DOF?
if optical qualities is ingored, you are right by saying 18-55 cannot shoot far (well at least it doesn't zoom as far as 18-135)
 

ipin

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Nov 21, 2005
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What are the other factors that I need to take note of if I want to have a picture of shallow DOF?
Apature, distance to subject & type of lens (e.g. macro vs. wide angle).
 

NeTHaCk

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Dec 8, 2004
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#4
the kit lens , 18-55 is roughly equivallent to about 3-4X optical zoom on a PnS. correct me if im wrong...

that's if you're talking basic PnS
 

skopio

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Nov 26, 2006
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its a 3x zoom. doesnt matter whether its a PnS or DSLR or RF or whatever. its still the same.
longest focal range/shortest focal range = n times zoom
its just a ratio.
 

Camm

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#6
Is this kit lens, from d40, d50 and canon 400d able to create portrait pics with shallow DOF?
 

borisi

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Dec 26, 2006
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#8
In general the wider zoom coverage will have poorer image quality compared to a narrower zoom lens which in turn is poorer quality compared to a fixed focal length (=prime) lens. is a balancing act between picture quality and convenience.
 

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