Sorry, should be the EF 28mm f/2.8, from here. Third entry from the bottom of the wide angle lenses section.BraveHart said:Uh...the lens is already a USM lens...where does the AFD come in?
Sorry, should be the EF 28mm f/2.8, from here. Third entry from the bottom of the wide angle lenses section.BraveHart said:Uh...the lens is already a USM lens...where does the AFD come in?
When I say it comes by the definition, I refer to technical definition. Yes, L is meant for pros. But it does not have a hard technology enhancements for the pros. When I read that page, the only definitive statement across all L lenses is that it contains LD and SLD. The "sometimes used" is not a statement you can applied across all Ls. This includes AS, SSC (third para that you mentioned above).mpenza said:just wondering.... who came up with the definitive definition?
Canon USA website has some info on L lenses:
http://www.usa.canon.com/eflenses/technology/lseries.html
some other items are mentioned like Super Spectra Coating, designed and built to meet the needs of the most demanding professional photographers, etc which probably should be included in the "definitive definition".
Well, many here thinks USM == always focus very fast. Sorry no. Faster maybe, always very fast? No.mpenza said:What I meant was that the comparison isn't too useful if the definition isn't that right to begin with cos there're non-quantifiable qualities which are equally, if not more, important. The technology found in the AF-S 18-70 could also be found in top "ED" Nikkors, so does it mean the AF-S 18-70 is the same class as the top pro Nikon lenses designed to meet the needs of Nikon professionals?
bobotto said:For those interested to see what our Offstone brothers have to say, here's a link to Offstone's clone of this thread.
Continuing Thread in Offstone
- Bob
:thumbsup: We are in agreement then... .mpenza said:I always thought the "L" designation was more of a marketing "definition", rather than a "technology" definition. So, comparing the technology aspect doesn't really make sense and is not useful (It's just like comparing the weight of the lens - many lenses from other manufacturers have the same/similar weight as L lenses).
Lots of lenses have the same LD, SLD and ED "technology" as L lenses and Nikon ED lenses such as a <$300 tamron 70-300 LD macro. Even a consumer digicam has "ED" lens.
Watcher said::thumbsup: We are in agreement then... .
Now back to our usual flamewars :sweat:
Watcher said:on the 1d, there's no such thing as buffer full, it can shoot at 8fps till the cf is full (i duno how they do it)
The 1D has a 21 frame buffer, and plenty of my colleagues bemoan it. OTOH the D2h has a more generous 40 frame buffer, which is all but impossible to fill (due to improved CF write speed as well). The 1D mk II will also have a 40 frame buffer, but with bigger files.
what i heard was that if u did not release the shutter in continuous mode, the 1d/1ds is able to shoot at 8fps till the CF is fill. i have not check out if the d1/d2h is able to do that. yes, i thought it's based on how big the frame buffer is and when the frame buffer is full it'll stop, but canon users have been telling me that story. i heard that the speed of CF card doesnt matter, altough most cards are at least 32x now. i havent been able to find someone willing to let me try that on his cam yet.
Oh pleaze! . Even Canon marketing dare not print such thing! :sweat: Using Sandisk Extreme 512MB, the 1D writes only around 69% of the D70 (JPEG large fine). Please ask. The closest camera that can do this (hold down the shutter until the CF is full) is the D70
easy to select AF point on 300d/10d, unlike d100
You are kidding aren't you?
press a button then turn the dial. on the d100 u have to use the mode dial
You obviously have not used a D100 or D70 before. The joy pad below operates to select, left right, up or down. No need even to press an button!
Please, get a real Nikon user to demo to you the D70 or D100 before you write more of this stuff.
True, true, esp for the 2nd para...mpenza said:no prob ;p
L designation is like Toyota's Lexus. Expensive and luxurious but it does come with its benefits, whether tangibles (features/technology) or intangibles (workmanship/design/build, etc). Nikon could have done the same to differentiate the top ED lenses from the rest but for good or bad it didn't. Just a difference in marketing strategy (some other manufacturers do have similar designations - Sigma's EX and Tamron's SP for example).
Comparing just the technology do get people upset, just like if someone were to say that the AF-S 18-70 has the same technology (ED) as the Tamron 70-300 LD. Most of us know that having the same technology does not mean the same optical performance, build, design, etc.
Watcher said:True, true, esp for the 2nd para...
But you see, like I said before, regardless of the technology used, the lens' performance must stand on its own. Just like Nightpiper said about his lens. Just like the Nikkor AF 85 f/1.4. No SWM/AF-S, no ASP (Asperical) and ... no ED. So by the Canon's definition, it is not a L lens. But so what? It is one of the best lenses for portraiture (35mm), pro or not pro.
That is my main point: for Nikkor lenses, ED or no ED, the lens stands on its own performance.
nightpiper said:i m a nikon film user & only have a little play with my friends' canon D60 & 10D. i kinda like the features built into canon that makes it feels ready everytime.
mpenza said:Yup. AF-S 18-70 is good, not just because it has ED, AF-S, etc..... similarly, Canon lenses do not need to be L to perform well for pros/non-pros(e.g. macro lenses, primes, 28-135 IS). generally speaking though, Nikon ED lenses and Canon L lenses are pretty good. They're priced similarly right for similar focal lengths, speed and features?
gadrian said:Ready to go everytime.. hmm you obviously have not done a test of the ready to go right next with a D70 and 300D.. or a D100 with a 10D - 3s startup time for the 300D.. during which time.. the D70 would have already fired of.. 9-11 frames.. and the sleep mode of the 300D.. approx 1.5-2 sec to wake up.. hmm compared to the ~ instantaneous on the D70..