gazzajagman wrote:
I really enjoy the Digital picture reviews but their tests often show LoCA with the fast aperture primes. Which indicates that the point of focus is slighly out. The magenta hues are the tell-tale give away. Lens tests are a very specialised and highly delicate operation and very far removed from real world shooting. So far I haven't found a lens test site that is completely trust worthy. Photozone.de is a complete joke and completely out of date.
I have a 17-40L and a 16-35 II L and I also use a Mk I on occasion. There's is little between these three lenes. Sure the 16-35 II is a wee bit better in the corners but not by much. ...Show more →
for whatever reason the digital pictures ones too often dont match my own findings so i find that site hard to rely on.
photozone.de actually does agree with my findings fairly often, but not always and they are now a bit out of date with no canon FF testing and such.
Xavier Rival wrote:
I have just checked again the specs on DPreview, and I read .
Where does this 3" minimum focusing (or working, maybe ?) distance come from ?
It seems to me that 0.25m minimum focusing distance makes sense for such a lens (that is comparable to what the 17-40L or 24-105 do for instance). But then that would not correspond to a 3" minimum working distance either (Thank you, Lars; I had not noticed this minimum working distance term was used for that ): the lens is about 80mm long, and the distance from the sensor plane to the lens mount is around 40mm, so 40+80+77=197mm, which is much less than 25cm....Show more →
I just checked 0.25 m is minumum focus on the current 24L, so is it unchanged on the MK II ?
Mike, 99% sure its more or less the same as on the old one. It certainly isnt the quoted 7.7cm, as already pointed out, that would actually be inside the lens.
Mike V wrote:
I just checked 0.25 m is minumum focus on the current 24L, so is it unchanged on the MK II ?
Well, then it means the typo could also come from DPreview having copy pasted specs of the old lens...
I know I am not helping much, just pointing out an incoherence...
Is there is diagram of the internal lens layout somewhere? Not really sure why I care, but the 24mm has one UD and one aspherical, the new one seems to have two UD and two aspherical. Plus the new one has got 13 elements instead of 11. I was wondering if the new design is more like the old 35mm design, or something completely different...
Ovi Ivoda wrote:
Second, the optical layout (scheme) of both versions looks very similar, so IMHO it is not possible so drammaticaly reduce the minimum focussing distance...
My current 24L blows away 16-35L II, and 24-70L at F/2.8 (mine is sharp) anywhere around the frame. Hell it's even sharper than my 35L wide open in the middle.
Yes, my 24L center is sharper than 35L. It's just too sharp. I guess that's why people complain about its border softness
joeisayo wrote:
My current 24L blows away 16-35L II, and 24-70L at F/2.8 (mine is sharp) anywhere around the frame. Hell it's even sharper than my 35L wide open in the middle.
Daan B wrote:
So, would you say that the 24L has excellent sharpness in the center, but not so excellent in the corners?
If I understand correctly the corner sharpness should be better on the 24L II, right?
Don't know about the II, but the 24L is very sharp in the center and not so much at the corners. The 35L is more even, but it's not as sharp at the center as the 24L. Basically more balanced but not as good at its best.
Mike, 99% sure its more or less the same as on the old one. It certainly isnt the quoted 7.7cm, as already pointed out, that would actually be inside the lens.
I'm excited about this new lens. And I will probably buy it around New Year if it's possible.
A lot of good glass inside it, as we can see on your link. Also a bit surprised that it still has the 77mm filter diameter. When the diameter of the lens is about 10mm more than the old.
And the price isn't that much when comparing it to the MKI lens marketing price. That price was 210.000 yen. And the new lens is 235.000 yen
Lars Johnsson wrote:
Also a bit surprised that it still has the 77mm filter diameter. When the diameter of the lens is about 10mm more than the old.
That wouldn't work very well, would it.
The dia is the same, it is the length which grew by 1 cm. (according to the specs).
Those that can read Japanese: in the above link the lens element schematic is shown. The first element is red lined on the concave side. Is that their new nano crystal coating or whatever they are calling it ?
Sep 27, 2008 at 10:15 AM
Lars Johnsson Offline • • • • • • • Upload & Sell: Off
PetKal wrote:
That wouldn't work very well, would it.
The dia is the same, it is the length which grew by 1 cm. (according to the specs).
Those that can read Japanese: in the above link the lens element schematic is shown. The first element is red lined on the concave side. Is that their new nano crystal coating or whatever they are calling it ?
According to the specs I have been reading (Dpreview & press release) the diameter is not the same
Lars Johnsson wrote:
According to the specs I have been reading (Dpreview & press release) the diameter is not the same
You are not reading the right specs, Johnsson.
Besides, take a look at the lens photo. Does the barrel look 1 cm thicker than the front/thread diameter of the lens ? Does the lens look longer ?
Sep 27, 2008 at 01:14 PM
Lars Johnsson Offline • • • • • • • Upload & Sell: Off
PetKal wrote:
You are not reading the right specs, Johnsson.
Besides, take a look at the lens photo. Does the barrel look 1 cm thicker than the front/thread diameter of the lens ? Does the lens look longer ?
So where is the right specs then just post a link
Sep 27, 2008 at 01:29 PM
Lars Johnsson Offline • • • • • • • Upload & Sell: Off
Canon specs for the new lens 24/1,4mkII
Lens mount Canon EF
Image size 35mm full frame
Diagonal angle-of-view 84°
Elements/groups 13/10
Minimum aperture f22
Diaphragm blades 8
Focus Adjustment Rear focusing system
AF motor Ring-type ultrasonic; Full-time manual focus
Closest focusing 0.25 metre
Maximum magnification 0.17x
Filter Size 77mm (does not rotate during focusing)
Lens hood EW-83K
Lens pouch LP1319
Distance information provided for E-TTL flash metering
Size 93.5 x 86.9mm
Weight 650g
Canon specs for the older mkI lens
Maximum Diameter x Length (mm) 83.5 X 77.4
Lens construction (elements/groups) 11/9 No. of diaphragm blades 7
Minimum aperture 22
Closest focusing distance (m) 0.25
Maximum magnification (x) 0.16
AF actuator USMı Filter diameter (mm) 77
Max. diameter x length (mm) 83.5 x 77.4
Weight (g) 550
): the lens is about 80mm long, and the distance from the sensor plane to the lens
