Pixalo Photography Community

Go Back   Pixalo Photography Community > Photography Forums > General photography questions and answers

General photography questions and answers: Discuss Rant Time....My friend recently decided to jump into dSLR. He came from the world of compacts where ?x zoom is all ...
Welcome to the Pixalo Photography Community. As a Guest you are free to browse the site, but see what extras you get as a Member here.


Reply
 
LinkBack Thread Tools Display Modes
Old 09-08-2006, 16:52   #1 (permalink)
Feet under the table
 
Join Date: Mar 2006
Location: Edinburgh
Posts: 1,928
orangepeel is a glorious beacon of lightorangepeel is a glorious beacon of lightorangepeel is a glorious beacon of light
orangepeel is a glorious beacon of lightorangepeel is a glorious beacon of lightorangepeel is a glorious beacon of lightorangepeel is a glorious beacon of light

Image editing O.K.
User's Gallery
Users Camera Equipment List
Rant Time.

My friend recently decided to jump into dSLR. He came from the world of compacts where ?x zoom is all the rage.

Anyway, he was looking at the nikon "AF-S DX VR 18-200mm 3.5-5.6G IF-ED" as an everyday lens and this is a quote from the nikon bumf...

"This is an all round 11.1x zoom lens, ideal for dedicated amateurs... blah blah"

I told him that I had the baby "AF 70-300 f/4-5.6G" and that there would be more zoom on it. He then mentioned that nikon say it's only a 4.6x zoom and that his would obviously be better (zoom wise - i'll ignore optical quality for now).

Anyway, I just worked out how nikon calculate this ?x zoom number. It appears as though it's the max focal length divided by the min focal length. It may well have been obvious to you but I'm new to this and just worked it out

So now for the rant... why the **** **** do these **** **** **** nikon **** use such a **** stupid ***** calculation which to compact users can equate to less zoom on some lenses? why in **** gods **** name would they do this?
__________________
Verdant Vista | Shooting Diary
orangepeel is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-08-2006, 18:31   #2 (permalink)
Pixalo Crew
 
dabhand16's Avatar
 
Join Date: Jun 2006
Location: Dunstable Bedfordshire UK
Posts: 30,294
dabhand16 is a glorious beacon of lightdabhand16 is a glorious beacon of lightdabhand16 is a glorious beacon of light
dabhand16 is a glorious beacon of lightdabhand16 is a glorious beacon of lightdabhand16 is a glorious beacon of lightdabhand16 is a glorious beacon of lightdabhand16 is a glorious beacon of light

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: Rant Time.

I always thought that describing the 'zoom range' was standard for all lens makers. However, it woul be useful to also state the magnification range as compared to a standard lens with a normal outlook, that is zero magnification.

You are right to say that whereas 'we' would look at the focal length to ascertain the strength of a lens, and probably not even register the 'zoom range', compacts are marketed the other way round.

Whilst we are on the subject, how do you rate the 70-300? I would prefer, in an ideal situation, f2.8 as the maximum apature, (although my 18-70 kit lens is f3.5-f4.5), and the new 18-135 is closer to that, and I've just posted some thoughts on lenses on the forum announcing this lens. There is also a 70-300 f4.5-f5.6 VR for £399 comming soon.

I'm going to wait for the prices to settle before making any decisions.
__________________
Graham
dabhand16 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 21-08-2006, 13:07   #3 (permalink)
Pixalo Crew
 
Join Date: Jan 2005
Posts: 19,250
Steve is just really nice
Steve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really nice

Image edit - ASK
User's Gallery
Users Camera Equipment List
Re: Rant Time.

Its just set to maximise advertising effect and bring in the most revenue. The fact taht it sets to confuse the very people that the big companies are hoping to get as their customers in by the by to them.

Unfortunately it is the way of the world as more and more standards become less straightforward and more confusing
Steve is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 21-08-2006, 13:27   #4 (permalink)
Pixalo Crew
 
Markulous's Avatar
 
Join Date: Jul 2006
Location: Peak District
Posts: 19,640
Markulous is a jewel in the rough
Markulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the rough

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: Rant Time.

You'll be saying that manufacturers use megapixels as an indication of quality next! LOL!

At least focal length is something that can't be messed with, even if it leads to confusion for some when considering crop factors on dSLRs!
Markulous is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 21-08-2006, 13:32   #5 (permalink)
Pixalo Crew
 
Join Date: Jan 2005
Posts: 19,250
Steve is just really nice
Steve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really nice

Image edit - ASK
User's Gallery
Users Camera Equipment List
Re: Rant Time.

Quote:
Originally Posted by Markulous View Post
At least focal length is something that can't be messed with, even if it leads to confusion for some when considering crop factors on dSLRs!
Never a truer work written...this is still one of the most confusing and talked about DSLR topics around.
Steve is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 21-08-2006, 14:49   #6 (permalink)
Feet under the table
 
Join Date: Mar 2006
Location: Edinburgh
Posts: 1,928
orangepeel is a glorious beacon of lightorangepeel is a glorious beacon of lightorangepeel is a glorious beacon of light
orangepeel is a glorious beacon of lightorangepeel is a glorious beacon of lightorangepeel is a glorious beacon of lightorangepeel is a glorious beacon of light

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: Rant Time.

Quote:
Originally Posted by Markulous View Post
At least focal length is something that can't be messed with
Actually...

Apparently the focal length is a bit flexible. I was trying to find out what it was acutally a measurement of.

Measuring Focal Length

Anyway, at the start of the article, you can find: -

Quote:
In fact most lens makers will tell you that the focal length marked on a lens is +/- 5%. That means your 400mm could be as short as 380mm and still be "within spec". Normally telephoto lenses err on the short side. It's MUCH more likely that a lens will be shorter than marked than longer.

It's a bit like a car manufacturer selling a Fandango 1.6L which is only 1580cc

Wonder if I can buy a lens costing £400 but only pay £380 on the basis that it's "nearly £400"
orangepeel is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 21-08-2006, 14:53   #7 (permalink)
Pixalo Crew
 
Join Date: Jan 2005
Posts: 19,250
Steve is just really nice
Steve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really nice

Image edit - ASK
User's Gallery
Users Camera Equipment List
Re: Rant Time.

Quote:
Originally Posted by orangepeel View Post

Wonder if I can buy a lens costing £400 but only pay £380 on the basis that it's "nearly £400"
You could always start a petition
I'd sign it
Steve is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
It's time to get a bag purplepleaser Cameras, Lenses and Accessories 20 21-02-2007 17:45
First time out Fangman Photo Critique 12 29-01-2006 20:20
Rant!!! jewel General Chat 69 13-01-2006 14:10
The last time I was out KenCo1964 Photos for fun 5 10-11-2005 22:40
There's always a first time for something... Biggus Welcome Forum 2 20-02-2005 14:55


All times are GMT +1. The time now is 02:24.


vBulletin Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
ReviewPost & PhotoPost vB3 Enhanced, Copyright 2003-2014 All Enthusiast, Inc.
SEO by vBSEO 3.3.0
Copyright © 2006 - 2017 Pixalo.com

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197