Focus

[Guest]

Archived from groups: alt.comp.periphs.dcameras (More info?)

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

 

[Guest]

Archived from groups: alt.comp.periphs.dcameras (More info?)

simple answer - no, not really

J. Yazel <jyazel@ds.net> wrote:
>
> 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

 

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Archived from groups: alt.comp.periphs.dcameras (More info?)

On Tue, 26 Apr 2005 16:10:00 -0400, J. Yazel <jyazel@ds.net> wrote:

> 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

 

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Archived from groups: alt.comp.periphs.dcameras (More info?)

"J. Yazel" <jyazel@ds.net> wrote in message
news:ekqv61hekmesbqgmm3u7b51i2nhhst35gt@4ax.com...
> On Tue, 26 Apr 2005 16:10:00 -0400, J. Yazel <jyazel@ds.net> wrote:
>
>> 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
>

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%20Filters&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/

--
CSM1
http://www.carlmcmillan.com
--

 

[Guest]

Archived from groups: alt.comp.periphs.dcameras (More info?)

>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%20Filters&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/
>
>CSM1
>http://www.carlmcmillan.com
=============================================

Thanks very much. Something here should help me.

Jack

 

[Guest]

Archived from groups: alt.comp.periphs.dcameras (More info?)

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.

 

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Archived from groups: alt.comp.periphs.dcameras (More info?)

<chrlz@go.com> wrote in message
news:1114944173.576454.4210@g14g2000cwa.googlegroups.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
> 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.

--
CSM1
http://www.carlmcmillan.com
--

 

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Archived from groups: alt.comp.periphs.dcameras (More info?)

On Sun, 01 May 2005 12:22:35 GMT, "CSM1" <nomoremail@nomail.com>
wrote:

><chrlz@go.com> wrote in message
>news:1114944173.576454.4210@g14g2000cwa.googlegroups.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
>> 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.
>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

 

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Archived from groups: alt.comp.periphs.dcameras (More info?)

"J. Yazel" <jyazel@ds.net> wrote in message
news:2g8a71pkhq8adtqc4eomu18jokfvnrvk6d@4ax.com...
> On Sun, 01 May 2005 12:22:35 GMT, "CSM1" <nomoremail@nomail.com>
> wrote:
>
>><chrlz@go.com> wrote in message
>>news:1114944173.576454.4210@g14g2000cwa.googlegroups.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
>>> 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.
>>CSM1
>>http://www.carlmcmillan.com
> =============================
>
> 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
>
--
CSM1
http://www.carlmcmillan.com
--