magkelly
TPF Noob!
- Joined
- May 5, 2010
- Messages
- 270
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- Location
- USA
- Can others edit my Photos
- Photos NOT OK to edit
I finally figured out why my $150 2X Fuji S7000 tele-lens always sucked. Mind you I have cleaned this lens a number of times and never noticed it but apparently it really helps if you don't have a UV filter on the back that doesn't belong there, and if everything inside is facing the right way.
The UV filter I actually thought was a part of the lens. It's the same exact color. It was on there when I took it out of the box, and the print is white and so faint that if you are not really looking for it it's all but invisible. I just thought it was the back cover to the lens.
I've always been rather nervous about opening it up all the way because I was afraid I'd screw it up if I did. I'm good at taking things apart, but putting things back together mechanically-speaking is never something I've never been too good at. Or at least I didn't think so.
I got so tired of haze, blur, and vignetting that today I finally decided to heck with it, that I surely couldn't make it perform any WORSE, no matter what I did to it, and that if nothing else it probably needed a good cleaning inside after all this time too, not just outside.
So I open it up, carefully placing the lens glass on the table in exactly the same way as it came off the lens and I start to clean the thing. About mid way through reassembly it occurs to me that even though this isn't the same type of lens as an SLR that there is something vaguely wrong with the way this glass was in the lens, that it doesn't look quite like the diagrams I've seen of how lenses are supposed to work.
So I put it all down and I go look it up online, and I get to thinking that the lens in the rear is going the wrong way and that maybe one of the metal rings inside is possibly flipped too. So then I go and find me a diagram of that particular lens and low and behold it has no back glass and I am right, both parts are flipped the reverse of the way they came off the lens.
So I follow the diagram and leave off the piece of glass on the back and for the first time in SEVEN years my 2X telephoto lens does exactly what it's supposed to do! No blur, no vignette, no slight haze!
Now, just for the record that lens was sealed when I got it and I didn't buy a silver UV filter when I bought the rest of my filters which are a different color entirely, black. That filter was on the lens like that when I bought it, and the lens assembly was just as it was from the store in 2003.
From what I can tell that lens doesn't automatically come with a UV filter in the box normally and I'm sure it doesn't come from the factory reversed either so the only thing I can think is that someone else had my lens, that they didn't like it for some reason, that they accidentally left a UV filter on there, and that the store resealed it somehow and then sold it to me as brand new stock.
Yet more proof that some of the camera stores out in SF cannot be trusted!
$150 for a freakin lens and it's sold going BACKWARDS?
I don't mind getting the free filter, I guess, but it just makes me kind of mad the idea that I paid full price for what was obviously a used lens that someone likely screwed up and returned, though I feel very silly not having really taken the time to play with it in all this time.
I really should have taken the chance and just played with it anyway. If I hadn't have been such an absolute wuss when it came to really taking apart my equipment who knows what pics I might have taken in the past 7 years? I really feel kind of stupid, but at least now I have a telephoto lens for my digital that WORKS!
;P
The UV filter I actually thought was a part of the lens. It's the same exact color. It was on there when I took it out of the box, and the print is white and so faint that if you are not really looking for it it's all but invisible. I just thought it was the back cover to the lens.
I've always been rather nervous about opening it up all the way because I was afraid I'd screw it up if I did. I'm good at taking things apart, but putting things back together mechanically-speaking is never something I've never been too good at. Or at least I didn't think so.
I got so tired of haze, blur, and vignetting that today I finally decided to heck with it, that I surely couldn't make it perform any WORSE, no matter what I did to it, and that if nothing else it probably needed a good cleaning inside after all this time too, not just outside.
So I open it up, carefully placing the lens glass on the table in exactly the same way as it came off the lens and I start to clean the thing. About mid way through reassembly it occurs to me that even though this isn't the same type of lens as an SLR that there is something vaguely wrong with the way this glass was in the lens, that it doesn't look quite like the diagrams I've seen of how lenses are supposed to work.
So I put it all down and I go look it up online, and I get to thinking that the lens in the rear is going the wrong way and that maybe one of the metal rings inside is possibly flipped too. So then I go and find me a diagram of that particular lens and low and behold it has no back glass and I am right, both parts are flipped the reverse of the way they came off the lens.
So I follow the diagram and leave off the piece of glass on the back and for the first time in SEVEN years my 2X telephoto lens does exactly what it's supposed to do! No blur, no vignette, no slight haze!
Now, just for the record that lens was sealed when I got it and I didn't buy a silver UV filter when I bought the rest of my filters which are a different color entirely, black. That filter was on the lens like that when I bought it, and the lens assembly was just as it was from the store in 2003.
From what I can tell that lens doesn't automatically come with a UV filter in the box normally and I'm sure it doesn't come from the factory reversed either so the only thing I can think is that someone else had my lens, that they didn't like it for some reason, that they accidentally left a UV filter on there, and that the store resealed it somehow and then sold it to me as brand new stock.
Yet more proof that some of the camera stores out in SF cannot be trusted!
$150 for a freakin lens and it's sold going BACKWARDS?
I don't mind getting the free filter, I guess, but it just makes me kind of mad the idea that I paid full price for what was obviously a used lens that someone likely screwed up and returned, though I feel very silly not having really taken the time to play with it in all this time.
I really should have taken the chance and just played with it anyway. If I hadn't have been such an absolute wuss when it came to really taking apart my equipment who knows what pics I might have taken in the past 7 years? I really feel kind of stupid, but at least now I have a telephoto lens for my digital that WORKS!
;P
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