Watcher said:Do tell me how much wider does a FF on Canon zoom lens give you verses the 12-24? If you don't like the 12-24DX, there is always the 10-20 mm from Sigma that give you 15mm FOV at the widest, wider than even 16-35L!
Edit: The only exception is the Sigma 12-24, which does give significantly wider image. However, on digital (to a lesser extent on film), the corners are poor in quality as well. After cropping (if you want to mantain quality for the image), the FOV might end up like a 15mm lens
Watcher said:Now, on DX format, I get 12-24 which gives 18-36, prime which is 21 and FE 10.5. The only lacking I see is the prime DX. So do tell how much does a crop factor not capture at all? 1 degree or 2 degrees?
Worry more about the Canon's (professional) DSLRs like 1D and 1DMkII that has the widest prime at 17, zoom at 21 and totally no FE. Or the consumer DSLR that has a 16 equivalent zoom, but prime at 22, and no FE as well.
mpenza said:I like calculations ;p Instead of focussing on one particular range, let's look at the full range.
Original Zooms
On the DX format, the widest rectilinear zoom from Nikon is the 12-24 which gives 18-36 (at F4).
For Canon, there're 3 different possibilities:
1. 1.6xcrop DSLR - 10-22 which gives 16-35 (from F3.5-4.5, average faster than F4)
2. 1.3xcrop DSLR - 16-35 which gives 21-46 (at F2.8)
3. FF crop DSLR - 16-35 which gives 16-35 (at F2.8)
I did comment that a 9mm DX prime is missing.mpenza said:Original Primes
On the DX format, the widest rectilinear prime from Nikon is the 14 which gives 21mm.
For Canon, there're 3 different possibilities:
1. 1.6xcrop DSLR - 14 which gives 22.4
2. 1.3xcrop DSLR - 14 which gives 18.2
3. FF DSLR - 14 which gives 14
Two of the Canon formats offer wider FOV (using original lenses) and one offer less wide.
With just the 10-20, It gives 15-30 on 1.5x cam. So for Nikon DSLR, it is wider than 1.6x and 1.3x crop DSLR. Only the 12-24 + FF combo is wider. However, those using it will tell you on FF, the corner is rather poor. Crop, crop, crop if you wish to maintain qualitympenza said:3rd party zooms
On the DX format, the widest 3rd party rectilinear zooms from Nikon is the Sigma 10-20 which gives 15mm.
For Canon, there're 3 different possibilities:
1. 1.6xcrop DSLR - 10-20 which gives 16-32
2. 1.3xcrop DSLR - 12-24 which gives 15.6-31.2
3. FF DSLR - 12-24 which gives 12-24
Nikon using 3rd party zooms offers wider FOV than 2 of Canon formats and is less wide than 1.
Eh for FE, 15mm or 16mm does not matter; the diagonals still 180 degrees, no such thing as less wide.mpenza said:Fish eye
Nikon would have the edge for fish eye (entire frame) vs 2 of Canon's formats but is less wide than one of the format (FF with 15FE).
Watcher said:How much money is it worth to get the extra angle on zoom, prime and FE (and easier to summarize)? Which one provides a clear upgrade path that does not render lenses useless?
Watcher said:For the cheapest combo:
Nikon: D50 +10-20: 1.1k + 900 give 15mm, 21 mm prime no need to mention, +1.1k for FE
3-0
For mid-range pricing (body <S$3k):
Nikon: D70: 1.3k + 900 give 15mm, 21 mm prime no need to mention, +1.1k for FE
or D200: ???k (<3k by the latest rumours) + 900 give 15mm, 21 mm prime no need to mention, +1.1k for FE
3-0
For high end (body <$8k):
Nikon: D2X: 7k + 900 give 15 mm, 21mm prime, 1.1k for FE
1-2
Non-pro (1.6x crop) Canon users with existing lenses 16-35, 28-70:mpenza said:Existing Nikon film users who wants to replicate 16-35 and 28-70 on a DSLR needs to buy a 12-24 (slower by one stop) and 17-55DX. Total costs of ~$4k more in new lenses?
Existing Canon film users who wants to replicate 16-35 and 28-70 on a DSLR has more choices.... either expensive body or new lenses.
If you continue to think so...mpenza said:Canon 10-22 is as good as the Nikon 12-24DX in terms of image quality and performance. Sigma's 10-20 probably can't compare to the two.
Watcher said:If you continue to think so...Just like some who still thinks the EF-S 18-55 is just as good as the 18-70 DX
Why? Since a few here said that "it is better to have soft corners than NO corners".mpenza said:Substituting 12-24 and 10-22 for mid-range and 12-24 and 17-40F4L for top end:
Irregardless of money? I would get a scanning digital with Schneider Super-Angulon XL (6x17 anyone?) :lovegrin: :sweat: Who would be foolish to do wides on 35 mm if money is not an issuempenza said:For those who want the widest autofocus lens irregardless of money
mpenza said:nope, the EF-S 18-55 is to be compared with AF-S 18-55, while the better comparison for 18-70DX is EF-S 17-85 IS.
Watcher said:Why? Since a few here said that "it is better to have soft corners than NO corners".
Watcher said:Irregardless of money? I would get a scanning digital with Schneider Super-Angulon XL (6x17 anyone?) :lovegrin: :sweat: Who would be foolish to do wides on 35 mm if money is not an issue![]()
Watcher said::bsmilie:
Oh boy... Try and really compare the lenses first...
Well, if you can compare the 10-22 EF-S with 12-24DX, why can't the 10-20 be a substitute ? :sticktong What can reach 16mm FOV on 1D/1DMkII top pro cameras? Non from Canon. It seems that even you are leaving out the 1.3x crop cameras from comparison... :think:mpenza said:I have my own views. You could always follow what others said :dunno: Anyway, what I have put is the more likely scenario. Would buyers of Nikon topend/mid range bodies that rely on lenses for a living go for Nikon 12-24DX or Sigma 10-20?
A home-made camera, using 6x17 film, with the Super Angulon XL has been made costing < $3.5k of material... Quite a few here has seen, touch the camera and the results of itmpenza said:Within the context here.
Watcher said:Well, if you can compare the 10-22 EF-S with 12-24DX, why can't the 10-20 be a substitute ? :sticktong
goering said:I know what I am saying ... and I am well aware of the crop issues, the FOV, etc. My main point is just to point (pardon the pun) out that while the DX setups are very competent, there is still a place for FF
mpenza said:Existing Nikon film users who wants to replicate 16-35 and 28-70 on a DSLR needs to buy a 12-24 (slower by one stop) and 17-55DX. Total costs of ~$4k more in new lenses?
Existing Canon film users who wants to replicate 16-35 and 28-70 on a DSLR has more choices.... either expensive body or new lenses.