What is the different between 28mm len from 18-105mm kit len


DarkWingZ

New Member
Nov 7, 2012
5
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0
Singapore
#1
Hi,

Like to check what is the different between a fix len of 28mm and a kit len of 18-105mm.

Can we adjust the kit len to 28mm and use it to shoot instead of using the fix 28mm len?

Beside the different of aperture, what is the effect a 28mm can have and not the kit len?

Just like to get an ideas of the different. :)

Thank you.
 

Last edited:

daredevil123

Moderator
Staff member
Oct 25, 2005
21,644
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lil red dot
#2
Hi,

Like to check what is the different between a fix len of 28mm and a kit len of 18-105mm.

Can we adjust the kit len to 28mm and use it to shoot instead of using the fix 28mm len?

Beside the different of aperture, what is the effect a 28mm can have and not the kit len?

Just like to get an ideas of the different. :)

Thank you.
28 gives you wider aperture. And that alone is a lot of difference.

The 28mm probably gives you better image quality and sharpness as well.
 

Rashkae

Senior Member
Nov 28, 2005
19,105
12
0
#3
There is no such thing as "len". It's "lens" for singular, "lenses" for plural.

Yes, you can set your kit lens to 28mm and get a similar field of view as the 28mm prime lens. However, at 28mm, the 28mm prime lens will usually have a sharper edge to edge image compared to a zoom lens, as the whole lens was optimized for only that one focal length.
 

rhino123

Moderator
Staff member
Sep 1, 2006
5,243
15
38
NA
#4
Hi,

Like to check what is the different between a fix len of 28mm and a kit len of 18-105mm.

Can we adjust the kit len to 28mm and use it to shoot instead of using the fix 28mm len?

Beside the different of aperture, what is the effect a 28mm can have and not the kit len?

Just like to get an ideas of the different. :)

Thank you.
First off... it is Lens and not Len.

Second, fix focal lens or prime lens normally had less elements in it which will translate to better sharpness of the lens normally (of course there are really bad prime lenses around too). Then the aperture value is different and this is a very very important difference because it actually control the DOF in your picture.

Then you should look at the design of the aperture blades of both lens... and I believe there are difference too.

Finally... a 28mm prime lens is selling cheaper than a 24-105mm (if you purchase the lens separately).
 

Blur Shadow

Senior Member
Sep 17, 2005
4,886
4
0
#5
The good folks here have already explained the technical details.

You can easily obtain a prime lens and a zoom lens, such as those that you suggested, and do exactly as you imagined, and try to discern the difference.

If there is no perceivable difference by you, then there is no difference. I suspect that it would be painfully obvious though.
 

DarkWingZ

New Member
Nov 7, 2012
5
0
0
Singapore
#6
apologise for the lens to len thingy~ din noe it have such an impact.
=) thank all for the explaination as well.
 

Mechanic

New Member
Jan 14, 2012
126
1
0
SG
#7
I am using the 28mm f1.8, wide aperature range, better bokeh, moisture/dust seal and M/A when compared with 18-105mm f3.5-5.6
 

catchlights

Moderator
Staff member
Sep 27, 2004
21,903
46
48
Punggol, Singapore
www.foto-u.com
#8
First off... it is Lens and not Len.

Second, fix focal lens or prime lens normally had less elements in it which will translate to better sharpness of the lens normally (of course there are really bad prime lenses around too). Then the aperture value is different and this is a very very important difference because it actually control the DOF in your picture.

Then you should look at the design of the aperture blades of both lens... and I believe there are difference too.

Finally... a 28mm prime lens is selling cheaper than a 24-105mm (if you purchase the lens separately).
TS is referring to kit lens 18-105mm, and he is a Nikon user. Nikon don't have 24-105 lens.

http://www.clubsnap.com/forums/mass...digital-cameras-lenses-etc-4.html#post8216526
 

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