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Camera Lens  
User currently offlineFallingeese From Canada, joined Apr 2001, 2097 posts, RR: 17
Posted (13 years 3 weeks 4 days 16 hours ago) and read 1967 times:

I was wondering what the difference between a...

38-135mm zoom

and a

28-100mm zoom.

Both are 3.6x zoom. What is the difference and which is better for shooting from a distance.

Thanks in Advance.


Mark McWhirter...Contrails Photography
9 replies: All unread, jump to last
 
User currently offlineWietse From Netherlands, joined Oct 2001, 3809 posts, RR: 55
Reply 1, posted (13 years 3 weeks 4 days 16 hours ago) and read 1951 times:

Both are 3,6x zoom, yet one is 135mm, and the other is 100mm?? Sounds pretty strange to me, am I missing a point here, anyone?

Wietse/AMS



Wietse de Graaf
User currently offlineEGGD From United Kingdom, joined Feb 2001, 12443 posts, RR: 35
Reply 2, posted (13 years 3 weeks 4 days 16 hours ago) and read 1949 times:

Sounds like digital to me.

Neither are good for long range shooting.

This is close up stuff.

Regards

Dan


User currently offlinePUnmuth@VIE From Austria, joined Aug 2000, 4163 posts, RR: 54
Reply 3, posted (13 years 3 weeks 4 days 16 hours ago) and read 1947 times:

Hi!
135/38=3,55 ~ 3,6
100/28=3,57 ~ 3,6
Thats simply the ratio between higher and lower value. Doesnt neccessarily have to be a digital.
Peter



-
User currently offlineWietse From Netherlands, joined Oct 2001, 3809 posts, RR: 55
Reply 4, posted (13 years 3 weeks 4 days 16 hours ago) and read 1944 times:

ooooooow, wait... 3,6 indicates the zoomRANGE of the lense and not the times it magnifies real life?

Wietse/AMS



Wietse de Graaf
User currently offlineFallingeese From Canada, joined Apr 2001, 2097 posts, RR: 17
Reply 5, posted (13 years 3 weeks 4 days 16 hours ago) and read 1945 times:

Yes I am aware that neither are any good for lond range shooting. But both are advertised as 3.6x zoom. They aren't digital either. They are 35mm cameras. Basically point and shoot variety.

28-100mm wide angle zoom lens
and
38-135mm power zoom lens

If you have any other questions ask. But, back to the question. What is the reason behind the different numbers if in the end you have a 3.6x zoom?



Mark McWhirter...Contrails Photography
User currently offlineFallingeese From Canada, joined Apr 2001, 2097 posts, RR: 17
Reply 6, posted (13 years 3 weeks 4 days 16 hours ago) and read 1942 times:

Thanks Peter you beat me to it. So the ratio is the same but what is the reason behind the different numbers?


Mark McWhirter...Contrails Photography
User currently offlineSkymonster From , joined Dec 1969, posts, RR:
Reply 7, posted (13 years 3 weeks 4 days 16 hours ago) and read 1943 times:

A human eye sees the equivalent of around about 50mm - not an exact number, but not too far off (actually its nearer 55mm, but what the heck!).

A lens with anything less than 50mm gives a wider view than the human eye sees, anything more than 50mm gives a zoomed in or "closer" view in the resulting photo.

So, a 28-100 gives a full frame image from almost twice as wide as the view an eye takes in at 28mm, to half of what it takes in (i.e. the centre half of what you see with your eyes will fill the frame) at 100mm. A 38-135 lens doesn't take in such a wide view at the 38mm end and zooms in closer at the top end than a 100mm lens.

Wide angles (anything below 50mm) are good for static airplanes at airshows and not much else, 50mm exactly is the classic side-on ramp shot lens, but for decent pics at airports where you're away from the action the longer the better, although neither 100mm nor 135mm is likely to be long enough to shoot from the average location at an average airport - these need 200mm plus at least.


User currently offlineFallingeese From Canada, joined Apr 2001, 2097 posts, RR: 17
Reply 8, posted (13 years 3 weeks 4 days 15 hours ago) and read 1930 times:

Thanks alot Skymonster. I'd usually use my camera for as you said static displays though at a couple of my spotting locations a 3x zoom would cut it as the places are on final approach and on the taxiway.


Mark McWhirter...Contrails Photography
User currently offlineSkymonster From , joined Dec 1969, posts, RR:
Reply 9, posted (13 years 3 weeks 4 days 15 hours ago) and read 1920 times:

Fallingeese,

Put it another way... You already know that the 3.5x zoom means that you'll see something pretty wide at the small number end, and the center third or so at the other end. 28mm is wider than 35mm, so at the wide end you'll get more in with 28 than 35, but at the long end you'll be able to get in closer with 135 than you will with 100.

You pays your money...

Andy


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