Distortion lines on pictures taken with a wide angle lens
I have a Fuji fine pix E900 digital camera.
When I attach optional lenses for this camera the final pictures come out with distorted lines that look like the pic were taken with a light diffusing filter.
What is causing this?
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Regarding a 3rd party lens it always have some problem. Manually pictures can be taken , if completely not supported. Check the video and find similarities. Like keep F- 22 IN LENS , ( or the highest FNumber ) .. turn on manual controls.. then shoot.. check if this helps and inform
What you are suffering is something called barrel distortion which causes images to appear spherised or "inflated". Barrel distortion is associated with wide angle lenses and typically occurs at the wide end of a zoom lens. The use of converters often amplifies the effect. It is most visible in images with perfectly straight lines, especially when they are close to the edge of the image frame
the way to solve it is to try not use the end of the of the zoom of your lens. Above 20 mm you should be fine. If this is not possible then you can correct the effect in programmes like Photoshop
The cap is a plastic disk, usually black or silver, that snaps on at the end of the lens to keep the lens clean. Some lenses have two caps, one for each end when not attached to the camera.
Some cameras don't use a "loose" cap; those cameras generally retract the lens into the camera body and "close" a door in front of the lens.
Many, if not most, camera users do not use a cap (my guess).
The wide angle lens is generally an "optional" lens that can be used for group or scenery pictures when you want to shoot a "wide" picture. A "normal" lens is generally around 50mm (plus / minus 5mm). A wide lens is anywhere from 17mm to 24mm (or so).
Lines displayed on your pictures during play back seem to be a common problem with some of the models of fuji that I have repaired and all that I can suggest for a reason for this is Moisture in the lens unit. The lens unit on the Fuji E900 for example has 4 shutter leaves that decrease the amount of light that hits the sensor. Like your eye when you look at strong light. And 7 or 8 other leaves below the first 4 to control the light further. These are operated by electro magnets and guided on plastic slides. So, when moisture gets in and collects over time it seems to stick the shutter leaves together and the camera no longer controls the amount of light accurately enough and you get wierd and wonderfull paterns on your pictures. So far 4 fuji E900's and 1 E550 I have found this problem with moisture and It Isn't a quick job to fix either. But it is possible if you know what you are doing.
Hope this is of some help
There are lenses available to add with an adapter ring. I have the wide angle lens (which I LOVE) and a 2x telephoto lens. The wide angle lens allows me to macro from several feet away. It is an amazing lens. The telephoto lens is something you really need to use with a tripod. But yes, there are lenses you can add to your camera.
Just check out ebay - look for fuji convertor lenses, a pair of basic Raynox long and wide angle lenses are about £100 although you can buy higher spec ones for significantly more. With Jessops going through hard times they tend to put these in their junk/clearance bins - I got my wide angle for £1.39 after waiting for about 3 weeks for it to drop in price. Check out when they are closing or clearing stock. Guess all high st retailers will be in the same boat wherever you are based at the moment so willing to sell-off slow moving stock.
I think the most prudent solution is to give up on the idea. What do you need that for? This lens already has a huge range of 28 .. 300 mm in film equivalents, and it is marginally useful at 300 mm. Whatever else you put on it will make it worse (less light, poor focus and aberrations). Similarly, at the wide end, while it is technically possible to add a wide-angle element to shorten the focal distance to about 20 mm, that will also result in a loss of light and poor peripheral focus, so you will be much better off taking 2-3 pictures and blending them whenever you need a wider angle. This lens is a miracle of optimization -- it already has the attachments you are contemplating, plus macro and super-macro. I don't think its range can be expanded any further without an unacceptable degradation of quality.
Try this to isolate the problem.
Switch on the camera in auto and put it into full optical zoom. Now turn the camera to face you and angle it so that you can see into the lens without reflection. On full zoom the internal lens will be right up to the outer lens. Now press the button to take a picture. You should be able to see the shutter cover the inside lens and then open again. Did it completely cover the lens? It should do. If not then you will get an over exposed picture or a picture with lines across it.
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That's completely normal for those cheap wide angle add on lenses. There good for a little fun but nothing serious. I bought the lens kit for the Kodak DC3400, probably the exact same lens.
The telephoto in that kit was actually pretty reasonable though.