hartz
TPF Noob!
- Joined
- Aug 23, 2010
- Messages
- 117
- Reaction score
- 3
- Location
- Cape Town
- Can others edit my Photos
- Photos OK to edit
I have a D5100 and use an 18-105 as my walk-about lens. I've had this camera for about 4 years and recently went through the 9999-photos count.
Suddenly a few days ago I noticed that 99% of my photos were soft, badly so. After taking a deep breath I did a few tests.
1. All photos taken with the 18-105 are affected equally, but only when the zoom is between 18 and 35.
2. Beyond the 35mm mark the focus appears to be fine.
3. Photos taken with my 70-300mm lens appears to be fine.
This suggested to me that it is the lens rather than the camera. OK, it is a cheap lens (as lenses go), and I bought it second hand about 3.5 years ago. Being a bit of an adventure seeker, when on the mountain the camera and lenses tend to sometimes get bumped a bit, so I accept that this was due to happen sooner or later.
But to make sure I dug my 18-55 backup lens out of the drawer.
4. All photos taken with the 18-55 with zoom set anywhere between 18-35mm are soft.
5. All photos taken at zoom settings above 35 appears suddenly fine.
Focus tests beyond 35mm with either lens appears to be spot-on.
I have made many test shots, tripod-mounted, high shutter speed and low ISO, with a variety of F-stop values, and all tests appears to indicate that the problem exists only between 18-35mm, with either lens.
Two different lenses are affected on the exact same range of zoom values. The 70-300 lens is unaffected but doesn't cover the "affected" / suspicious 18-35 mm zoom range. I'm hoping to try my lenses on a friend's camera later today, but would like to ask: have anybody encountered something like this before? Any advice/suggestions? Would seeing my test shots mean anything, if so I will upload some.
Suddenly a few days ago I noticed that 99% of my photos were soft, badly so. After taking a deep breath I did a few tests.
1. All photos taken with the 18-105 are affected equally, but only when the zoom is between 18 and 35.
2. Beyond the 35mm mark the focus appears to be fine.
3. Photos taken with my 70-300mm lens appears to be fine.
This suggested to me that it is the lens rather than the camera. OK, it is a cheap lens (as lenses go), and I bought it second hand about 3.5 years ago. Being a bit of an adventure seeker, when on the mountain the camera and lenses tend to sometimes get bumped a bit, so I accept that this was due to happen sooner or later.
But to make sure I dug my 18-55 backup lens out of the drawer.
4. All photos taken with the 18-55 with zoom set anywhere between 18-35mm are soft.
5. All photos taken at zoom settings above 35 appears suddenly fine.
Focus tests beyond 35mm with either lens appears to be spot-on.
I have made many test shots, tripod-mounted, high shutter speed and low ISO, with a variety of F-stop values, and all tests appears to indicate that the problem exists only between 18-35mm, with either lens.
Two different lenses are affected on the exact same range of zoom values. The 70-300 lens is unaffected but doesn't cover the "affected" / suspicious 18-35 mm zoom range. I'm hoping to try my lenses on a friend's camera later today, but would like to ask: have anybody encountered something like this before? Any advice/suggestions? Would seeing my test shots mean anything, if so I will upload some.