digitalbug30d wrote:
why is wide open such a big deal? its like 100 percent crops around here..its old
Probably because there are a lot of people that are A) planning on using this as a general walk around, do-it-all kind of lens and B) A lot of people are already concerned about the small max aperture.
It is pretty reasonable to conclude that if people are going to be using it in less than ideal situations and they are already concerned that it isn't fast enough then they already expect that it will be used wide open quite frequently.
Someone was asking about an image with 7D and 15-85mm IS lens fully open and fully wide. So here is an example.
Also, the second image was shot at 85mm fully open and at ISO 6400. I didn't even bother to remove any noise. Both images processed from RAW in LR on Mac.
those shots are nice but just about any canon lens ever sold made can handle that, especially when downrezzed to the web/jpg.
if you get a chance please post a wide/open closeup shot - not landscapes - that show subject isolation. this is where where mediocre walkaround lenses rapidly identify themselves
I'm interested in this lens and will be the guinea pig. Its a very nice focal length for a travel walk-around.
And since Norman had it in stock, I am out the $$ and will have this in time for my NYC trip next weekend. I will post some shots when I get it on Wednesday or Thursday.
timpdx wrote:
I'm interested in this lens and will be the guinea pig. Its a very nice focal length for a travel walk-around.
And since Norman had it in stock, I am out the $$ and will have this in time for my NYC trip next weekend. I will post some shots when I get it on Wednesday or Thursday.
I ordered this morning from Norman for Tuesday AM delivery... I will post some "stuff" hopefully late Tuesday.
Yakim Peled wrote:
I guess I'm old then. Approximately 80% of my shots are wide open so wide open performance is very important to me.
Happy shooting,
Yakim.
Same here. Most of my shots are wide open or at least I want to take them wide open. As to sample images and 100% crops... well, web-resized sample images just don't tell anything about a lenses performance (sharpness, contrast performance, CA, etc). It may be old, but it's not silly to look at 100% crops for determining how good a lens is.
Yakim Peled wrote:
Approximately 80% of my shots are wide open so wide open performance is very important to me.
I think that people with fast lenses tend to shoot them wide open frequently. I know from experience that my f/2.8 zooms and f/1.4 primes are almost always shot wide open.
But for a slow, non-telephoto zoom lens? I think it's safe to say that most people tend to shoot these stopped down. I don't really see the point of shooting lenses like the EF-S 15-85 @ f/3.5, unless I'm compensating for having brought the wrong lens for the wrong situation.
Wide open performance for primes, f/2.8 and f/4.0 zooms are important. Also for telephoto lenses. But for slow f/3.5-5.6 zooms like the EF 28-135 or EFS 15-85... wide open performance is inconsequential, IMHO. I would be far more interested in how such a lens performs @ f8 than I would be @ f3.5.
A good example is the EF-S 10-22 lens. Extremely soft along the edges & corners when shooting wide open. But nobody cares, because it's not a lens people buy to use @ f/3.5. The lens excels when stopped down, and that's all people care about. People don't buy slow lenses to use them wide open. However, for a lens like the Tokina 11-16 f/2.8... wide open performance does matter. People buy fast lenses to use them wide open, after all.
Same reasoning applies here. Wide open performance for the EF-S 17-55 f2.8 is a big deal. But it's far less important for a slow lens like the EF-S 15-85.
stargazer78 wrote:
I think that people with fast lenses tend to shoot them wide open frequently. I know from experience that my f/2.8 zooms and f/1.4 primes are almost always shot wide open.
But for a slow, non-telephoto zoom lens? I think it's safe to say that most people tend to shoot these stopped down. I don't really see the point of shooting lenses like the EF-S 15-85 @ f/3.5, unless I'm compensating for having brought the wrong lens for the wrong situation.
Wide open performance for primes, f/2.8 and f/4.0 zooms are important. Also for telephoto lenses. But for slow f/3.5-5.6 zooms like the EF 28-135 or EFS 15-85... wide open performance is inconsequential, IMHO. I would be far more interested in how such a lens performs @ f8 than I would be @ f3.5.
A good example is the EF-S 10-22 lens. Extremely soft along the edges & corners when shooting wide open. But nobody cares, because it's not a lens people buy to use @ f/3.5. The lens excels when stopped down, and that's all people care about. People don't buy slow lenses to use them wide open. However, for a lens like the Tokina 11-16 f/2.8... wide open performance does matter. People buy fast lenses to use them wide open, after all.
Same reasoning applies here. Wide open performance for the EF-S 17-55 f2.8 is a big deal. But it's far less important for a slow lens like the EF-S 15-85....Show more →
I generally agree with Stargazer, I don't shoot even my 24-105 wide open very often. And funny enough, I used my tokina 11-16 close to wide open almost always. Stargazer's summary certainly hits the mark with how I shoot.
stargazer78 wrote:
I think that people with fast lenses tend to shoot them wide open frequently. I know from experience that my f/2.8 zooms and f/1.4 primes are almost always shot wide open.
Same here.
stargazer78 wrote:
But for a slow, non-telephoto zoom lens? I think it's safe to say that most people tend to shoot these stopped down. I don't really see the point of shooting lenses like the EF-S 15-85 @ f/3.5, unless I'm compensating for having brought the wrong lens for the wrong situation.
Wide open performance for primes, f/2.8 and f/4.0 zooms are important. Also for telephoto lenses. But for slow f/3.5-5.6 zooms like the EF 28-135 or EFS 15-85... wide open performance is inconsequential, IMHO. I would be far more interested in how such a lens performs @ f8 than I would be @ f3.5. ...Show more →
I had the 28-105/3.5-4.5 and 28-135/3.5-5.6, not to mention all four Fhantom variants and also shot with them wide open almost all the time. I guess I'm that kind of guy.....
stargazer78 wrote:
A good example is the EF-S 10-22 lens. Extremely soft along the edges & corners when shooting wide open.
ausmr wrote:
I like the 7D. It stands a very good chance to be a great companion to my 1Ds3.
But I'm also very impressed with the new 15-85 IS lens.
Here is a shot at ISO 3200.
-mirek
stargazer78 wrote:
I think that people with fast lenses tend to shoot them wide open frequently. I know from experience that my f/2.8 zooms and f/1.4 primes are almost always shot wide open.
But for a slow, non-telephoto zoom lens? I think it's safe to say that most people tend to shoot these stopped down. I don't really see the point of shooting lenses like the EF-S 15-85 @ f/3.5, unless I'm compensating for having brought the wrong lens for the wrong situation.
Wide open performance for primes, f/2.8 and f/4.0 zooms are important. Also for telephoto lenses. But for slow f/3.5-5.6 zooms like the EF 28-135 or EFS 15-85... wide open performance is inconsequential, IMHO. I would be far more interested in how such a lens performs @ f8 than I would be @ f3.5.
A good example is the EF-S 10-22 lens. Extremely soft along the edges & corners when shooting wide open. But nobody cares, because it's not a lens people buy to use @ f/3.5. The lens excels when stopped down, and that's all people care about. People don't buy slow lenses to use them wide open. However, for a lens like the Tokina 11-16 f/2.8... wide open performance does matter. People buy fast lenses to use them wide open, after all.
Same reasoning applies here. Wide open performance for the EF-S 17-55 f2.8 is a big deal. But it's far less important for a slow lens like the EF-S 15-85....Show more →
UCSB wrote:
Full sized comparisons to the 17-55 would be nice to see if you decide to do those tests.
That sounds like a good idea... no promises but let me see what I can do along that line... it will not be scientific, just visual results using the same procedure for each.
Yours beat mine to the West by a day, mine is currently on the Fedex plane out of Indianapolis inbound to SoCal. I will pair mine with a 40D, hopefully it nails the focus like yours, but my 40D seems good with every other lens I have tried (24-105, tokina 11-16, 100-300L, ect), so I am not worrying.
I figured on some vignetting at 15, doesn't surprise me, especially as a big 24-105 user.
