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Discuss what's fucking going on, and which programs are best and worst. One-time "program" announcements from "established" webmasters are allowed. |
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#1 |
Too lazy to set a custom title
Industry Role:
Join Date: Aug 2002
Posts: 55,351
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camera geeks, lense question
whats the difference between having say a 70-300mm telephoto zoom
and 100mm standard/medium telephoto or 200mm telephoto or would the 70-300mm cover those 2
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Since 1999: 69 Adult Industry awards for Best Hosting Company and professional excellence. ![]() WP Stuff |
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#2 |
So Fucking Banned
Join Date: Aug 2008
Location: Just Blow Me
Posts: 10,551
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here`s a bump
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#3 |
Too lazy to set a custom title
Join Date: Mar 2002
Location: Australia
Posts: 17,393
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Sounds like you're asking about 100/200mm primes and a 70-300mm zoom? What exactly are you wanting to know, whether a zoom will offer you the same quality as a prime? For all intents and purposes, unless you're an anal pixel peeper (poring over your 20 megapixel images at 100% zoom looking for 5 pixel wide lens imperfections) or the zoom lens has a bad design there's really not a huge difference.
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#4 |
Too old to care
Industry Role:
Join Date: Jun 2001
Location: On the sofa, watching TV or doing my jigsaws.
Posts: 52,943
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The problem with both these lenses is unless you're shooting outdoors or in a very big room they will be unusable. You need something more wide angle like a 28-70.
Assuming you want it for work or taking pictures of the family. |
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#5 |
So Fucking Banned
Industry Role:
Join Date: Jul 2003
Location: Montana
Posts: 46,238
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the difference is fast, quality glass.... yes the 70-300mm covers the focal length HOWEVER won't have the quality of say the 200mm 2.0 or the 100mm 2.0. I think the 70-300mm is 4.5-5.6 or something like that...
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#6 | |
So Fucking Banned
Industry Role:
Join Date: Jul 2003
Location: Montana
Posts: 46,238
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Quote:
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#7 |
Confirmed User
Industry Role:
Join Date: Jul 2003
Posts: 3,108
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Fris,
a 70-300mm lense will give you basically a lense you can change as if it acts like a lens with a mm of anywhere between 70 and 300. The reason why people prefer a fixed lense instead of zoom is usually picture quality and light sensetivity which is better in fixed lenses usually. The longer the mm the bigger (wider) the lens has to be to keep the same light sensetivity. Thus a zoom will always be worse at it's highest setting compared to the lowest. A zoom also usually requires more seperate optical parts thus impacting image quality. There are two things to look at in a lens: the mm and the f, f defines the ratio between length and width. The best you can usually get is 1:1.2 (sometimes written 1/1.2 or just 1.2). The smaller the 2nd number the more light the lense takes in but also the smaller the depth of field. Most lenses have around 1:3-1:6. A zoom lens will list f as a range since the longer it gets set to the bigger the 2nd number of course is. Lenses increase in price rapidly the wider they are btw, especially zoom lenses. Btw, Paul, I do most of my family photos with the canon 80mm 1:1.2 usm2. At least of my daughter when she plays, let's me do photos from a bit further away.
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"Think about it a little more and you'll agree with me, because you're smart and I'm right." - Charlie Munger |
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#8 |
Carpe Visio
Industry Role:
Join Date: Jul 2002
Location: New York
Posts: 43,058
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#9 |
Confirmed User
Industry Role:
Join Date: Dec 2002
Location: Behind the scenes
Posts: 5,190
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learned something new, insightful thread
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#10 | |
Confirmed User
Industry Role:
Join Date: Jun 2003
Location: Vegas
Posts: 3,243
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See.. getting once lens to cover everything is not generally the best idea, if you care about how your image looks
if you are on vacation and can only take one lens then this would be good.. because your images are snap shoots, however if you want your images to look good.. this is not the lens for your. here is the review.. you can see there are a lot of problems with this lens.. it is not sharp it is doesn't capture light even ( you lose almost 1 full stop around the outside edges) and a lot more. http://www.dpreview.com/lensreviews/..._n15/page3.asp there are reason people have different lens.. One wide angle lens.. one normal range lens.. and one telephoto.. So they can do a better job with in the range they are shooting. Is one type of doctor for every things? There are general M.D.'s .. but they are not as good at certain things as other doctores.. If you need brain surgery.. go to a brain surgen.. Same with lens.. if you need a long lens.. get a lens that just does that.. if you need a wide angle lens.. just get that.. Most of the time i carry at least 3 zoom lens.. and when I am in the studio.. i have prime lens i use.. Quote:
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