Re: Blind test: 18-155 vs 32mm
Andy01 wrote:
Not blind as pointed out above.
I was a bit confused with your repeated typo - was it 18-55mm or 18-150mm (not 18-155mm). The exif data showed my that it was 18-150mm.
The fact that the images are shot at different exposures as well makes it hard to truly compare - the 32mm photo is brighter and had twice the exposure (1/1000th) of the 18-150mm (1/2000th). This makes the roof look brighter and show more detail.
Colin
Yeah, ok, not blind since you can cheat and look at the EXIF. And not sure why I typed 18-155 which of course should have been 18-150. Sorry for the confusion.
Anyway, point was mostly about comparing the sharpness of the two lenses, and I was not surprised at the gap between the two... I wish the zoom was sharper, but the new prime is MUCH better. Doesn't really need pixel peeping to see the difference. I've seen an obvious difference in the 11X14 prints I have done using both lenses.
BUT: about that difference with the shutter speed... I noticed and wondered why that happened. The camera was on a tripod on a full sunny day. These pics were 3 min apart because it took me some time to get the zoom lens to exactly 32mm. But I switched back and forth over 15 min with a couple different angles and every shot with the 32mm the camera chose 1/1000, and every shot with the 18-150 the camera chose 1/2000.
These are the two possibilities I think:
1) Some slight change in cloudiness happened just as I changed lenses (several times) which was enough to cause the camera to alter shutter speed
2) These lenses don't actually let in the same amount of light at their stated settings.