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Photo Forum / Digital Photography / Digital Photo / May 2005Focus
I have a used digital camera that is slightly out of focus. Is there any fairly simple way to add a correcting lense to it to correct the focus? It doesn't have a lens adapter. It's just a snapshot camera. Thanks for any help. Jack simple answer - no, not really > I have a used digital camera that is slightly out of focus. > [quoted text clipped - 6 lines] > > Jack > I have a used digital camera that is slightly out of focus. > Is there any fairly simple way to add a correcting lense >to it to correct the focus? > It doesn't have a lens adapter. It's just a snapshot camera. > Thanks for any help. > Jack ====================================== It just occurred to me that I didn't describe my problem clearly. I want to know if anybody knows the mathematics for calculating the additional lense at a distance of 1 inch or so. I can probably figure how to attach it to the camera. Thanks. Jack >> I have a used digital camera that is slightly out of focus. >> Is there any fairly simple way to add a correcting lense [quoted text clipped - 14 lines] > > Jack Focal Length of a Camera Lens http://hypertextbook.com/facts/2002/MiriamJanove.shtml There are what is called Close up filters that come in various powers. They come in different sizes to fit the screw threads on some camera lens. They are usually in a kit that have +1,+2 and +4 Diopters. They can be found a photo stores. http://www.adorama.com/catalog.tpl?op=itemlist&cat1=Filters&cat2=Close-Up%20Filt ers&cat3=&feature1=Hoya&searchinfo=hoya&item_no=3 This may be a better link for what you want for a digital camera. http://www.adorama.com/catalog.tpl?page=searchresults&searchinfo=close-up This company has the widest selection of digital camera Accessiories. http://www.bugeyedigital.com/  SignatureCSM1 http://www.carlmcmillan.com -- >Focal Length of a Camera Lens >http://hypertextbook.com/facts/2002/MiriamJanove.shtml [quoted text clipped - 14 lines] >CSM1 >http://www.carlmcmillan.com ============================================= Thanks very much. Something here should help me. Jack Close up filters only help if the focus is out in one direction, and they will almost certainly be WAY too strong. You would probably need a prescription lens! I think you might be pedalling up a vertical hill.. If it's a snapshot camera, it sounds like it isn't worth much, and probably the lack of sharpness is more deep-rooted than the lens. Also, if the lens is sufficiently bad, nothing will help. > Close up filters only help if the focus is out in one direction, and > they will almost certainly be WAY too strong. You would probably need > a prescription lens! I think you might be pedalling up a vertical > hill.. If it's a snapshot camera, it sounds like it isn't worth much, > and probably the lack of sharpness is more deep-rooted than the lens. > Also, if the lens is sufficiently bad, nothing will help. He did say that he wanted to focus to one inch. That is Close-up. If the camera does not have a Macro mode, then a Close-up lens may work. SignatureCSM1 http://www.carlmcmillan.com -- >> Close up filters only help if the focus is out in one direction, and >> they will almost certainly be WAY too strong. You would probably need [quoted text clipped - 7 lines] >CSM1 >http://www.carlmcmillan.com ============================= The one inch was the distance from the correction lens to the original. The focus should be just like any cheap camera. From a few feet to infinity. Jack >>> Close up filters only help if the focus is out in one direction, and >>> they will almost certainly be WAY too strong. You would probably need [quoted text clipped - 11 lines] > The one inch was the distance from the correction lens to the > original. Will not work then. Closeup lens should be close to the front element of the camera lens. > The focus should be just like any cheap camera. From a few feet to > infinity. > > Jack > SignatureCSM1 http://www.carlmcmillan.com -- |
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