Maxxum 7 diopter question.

I am thinking of upgrading from my old Canon A-1 to a Maxxum 7.The
specifications of the Maxxum 7 state that there is a diopter adjustment of -2.5
to +0.5. (It also seems to be fact that the viewfinder in any 35mm camera
itself presents a -1 diopter shift.) I am farsighted so to see objects close
up, I need to wear +2.0 diopter corrective lenses. My question is, when you
look through the viewfinder, at what distance is the image presented? In other
words, if you were able to place the lens of a second camera into the
viewfinder of the Maxxum 7 (the first camera), at what distance would you need
to focus the lens? The closer the image is displayed to my eye, as well as the
image data in the viewfinder, the higher my diopter correction needs to be.
Searching through past threads, some people say that the image in the
viewfinder is equivalent to looking at the subject from a distance of one
meter. But I cannot find any evidence from the manufacturers of any camera to
confirm this. Also, if I use the adjustable diopter wheel on the camera, how
can one calculate if it falls within the range of one's eyesight? I have
contacted Minolta and while they complimented me on the thoughtfulness of my
question, they did not have an answer.

Thanks for your reply,

David Farber
L.A., CA

David Farber wrote:

I am thinking of upgrading from my old Canon A-1 to a Maxxum 7.The
specifications of the Maxxum 7 state that there is a diopter adjustment of -2.5
to +0.5. (It also seems to be fact that the viewfinder in any 35mm camera
itself presents a -1 diopter shift.) I am farsighted so to see objects close
up, I need to wear +2.0 diopter corrective lenses. My question is, when you
look through the viewfinder, at what distance is the image presented? In other
words, if you were able to place the lens of a second camera into the
viewfinder of the Maxxum 7 (the first camera), at what distance would you need
to focus the lens? The closer the image is displayed to my eye, as well as the
image data in the viewfinder, the higher my diopter correction needs to be.
Searching through past threads, some people say that the image in the
viewfinder is equivalent to looking at the subject from a distance of one
meter. But I cannot find any evidence from the manufacturers of any camera to
confirm this. Also, if I use the adjustable diopter wheel on the camera, how
can one calculate if it falls within the range of one's eyesight? I have
contacted Minolta and while they complimented me on the thoughtfulness of my
question, they did not have an answer.


Not sure about the 1 meter apparent focus, however, the
viewfinder info is always in focus (if your eyesight or
prescription is correct or the diopter setting is correct for you).

NOTE: According to the Max 7 spec (KM site), the diopter
adjustment is -2.5 to +0.5. (not +1.0).

If your correction requirement is +2 you can order that diopter
as a "clip on" device for the viewfinder. This should give you a
full view of the scene and the displayed data in the viewfinder.

eg:
http://www.bhphotovideo.com/bnh/cont...u=35587&is=REG

Sorry if this doesn't answer the heart of your question, but it
should allow you to use the camera.

The clip on would be best for you as you could visualize your
scene out of the viewfinder normally and then have the corrected
view when looking through. No need to fumble with glasses.

You could also ask this question at
http://groups.yahoo.com/group/Minolta/ where there is more likely
to be someone with the same problem and same camera and can
answer with all the details.

Cheers,
Alan



--
-- rec.photo.equipment.35mm user resource:
-- http://www.aliasimages.com/rpe35mmur.htm
-- e-meil: there's no such thing as a FreeLunch.--

On Wed, 14 Jul 2004 04:53:21 +0000, David Farber wrote:

I am thinking of upgrading from my old Canon A-1 to a Maxxum 7.The
specifications of the Maxxum 7 state that there is a diopter adjustment of -2.5
to +0.5. (It also seems to be fact that the viewfinder in any 35mm camera
itself presents a -1 diopter shift.) I am farsighted so to see objects close
up, I need to wear +2.0 diopter corrective lenses. My question is, when you
look through the viewfinder, at what distance is the image presented? In other
words, if you were able to place the lens of a second camera into the
viewfinder of the Maxxum 7 (the first camera), at what distance would you need
to focus the lens? The closer the image is displayed to my eye, as well as the
image data in the viewfinder, the higher my diopter correction needs to be.
Searching through past threads, some people say that the image in the
viewfinder is equivalent to looking at the subject from a distance of one
meter. But I cannot find any evidence from the manufacturers of any camera to
confirm this. Also, if I use the adjustable diopter wheel on the camera, how
can one calculate if it falls within the range of one's eyesight? I have
contacted Minolta and while they complimented me on the thoughtfulness of my
question, they did not have an answer.

Thanks for your reply,

David Farber
L.A., CA

Going from a Canon A-1 to anything by Minolta cannot be considered an
upgrade! See, they can't even answer a question. :-)

--
Dallas
visit www.aliasimages.com/rpe35mmur.htm
For guidelines on who and what makes this group worthwhile

On Wed, 14 Jul 2004 04:53:21 +0000, David Farber wrote:

I am thinking of upgrading from my old Canon A-1 to a Maxxum 7.The
specifications of the Maxxum 7 state that there is a diopter adjustment of -2.5
to +0.5. (It also seems to be fact that the viewfinder in any 35mm camera
itself presents a -1 diopter shift.) I am farsighted so to see objects close
up, I need to wear +2.0 diopter corrective lenses. My question is, when you
look through the viewfinder, at what distance is the image presented? In other
words, if you were able to place the lens of a second camera into the
viewfinder of the Maxxum 7 (the first camera), at what distance would you need
to focus the lens? The closer the image is displayed to my eye, as well as the
image data in the viewfinder, the higher my diopter correction needs to be.
Searching through past threads, some people say that the image in the
viewfinder is equivalent to looking at the subject from a distance of one
meter. But I cannot find any evidence from the manufacturers of any camera to
confirm this. Also, if I use the adjustable diopter wheel on the camera, how
can one calculate if it falls within the range of one's eyesight? I have
contacted Minolta and while they complimented me on the thoughtfulness of my
question, they did not have an answer.

Thanks for your reply,

David Farber
L.A., CA

Going from a Canon A-1 to anything by Minolta cannot be considered an
upgrade! See, they can't even answer a question. :-)

--
Dallas
visit www.aliasimages.com/rpe35mmur.htm
For guidelines on who and what makes this group worthwhile

Subject: Maxxum 7 diopter question.
From: Alan Browne
Date: 07/14/2004 9:23 AM Pacific Daylight Time
Message-id:

David Farber wrote:

I am thinking of upgrading from my old Canon A-1 to a Maxxum 7.The
specifications of the Maxxum 7 state that there is a diopter adjustment of
-2.5
to +0.5. (It also seems to be fact that the viewfinder in any 35mm camera
itself presents a -1 diopter shift.) I am farsighted so to see objects
close
up, I need to wear +2.0 diopter corrective lenses. My question is, when you
look through the viewfinder, at what distance is the image presented? In
other
words, if you were able to place the lens of a second camera into the
viewfinder of the Maxxum 7 (the first camera), at what distance would you
need
to focus the lens? The closer the image is displayed to my eye, as well as
the
image data in the viewfinder, the higher my diopter correction needs to be.
Searching through past threads, some people say that the image in the
viewfinder is equivalent to looking at the subject from a distance of one
meter. But I cannot find any evidence from the manufacturers of any camera
to
confirm this. Also, if I use the adjustable diopter wheel on the camera,
how
can one calculate if it falls within the range of one's eyesight? I have
contacted Minolta and while they complimented me on the thoughtfulness of
my
question, they did not have an answer.


Not sure about the 1 meter apparent focus, however, the
viewfinder info is always in focus (if your eyesight or
prescription is correct or the diopter setting is correct for you).

NOTE: According to the Max 7 spec (KM site), the diopter
adjustment is -2.5 to +0.5. (not +1.0).

If your correction requirement is +2 you can order that diopter
as a "clip on" device for the viewfinder. This should give you a
full view of the scene and the displayed data in the viewfinder.

eg:

http://www.bhphotovideo.com/bnh/cont...st&A=details&Q
=&sku=35587&is=REG

Sorry if this doesn't answer the heart of your question, but it
should allow you to use the camera.

The clip on would be best for you as you could visualize your
scene out of the viewfinder normally and then have the corrected
view when looking through. No need to fumble with glasses.

You could also ask this question at
http://groups.yahoo.com/group/Minolta/ where there is more likely
to be someone with the same problem and same camera and can
answer with all the details.

Cheers,
Alan



Hi Alan,

After reading,
http://www.nikonmall.com/buynikon_as...bility_Chart_0
40202.pdf

I think any camera which has a specified adjustable diopter correction can be
added to whatever prescription glasses you're already wearing. So if I need
+2.0 for close up reading, and perhaps a +1.5 for seeing clearly at one meter,
I could actually use my close up +2.0 glasses and adjust the camera's diopter
to -.5. The equivalent (+2-.5 =1.5) would enable me to see clearly at one
meter. Then I would also be able to read the display screen on back of the
camera without having to change or remove glasses. Of course, this is all
dependent on the viewfinder image being projected at one meter.

Thanks for your reply,
David Farber
L.A., CA

David Farber wrote:


meter. Then I would also be able to read the display screen on back of the
camera without having to change or remove glasses. Of course, this is all
dependent on the viewfinder image being projected at one meter.

David,

I would suggest that you locate a Maxxum 7 in your area and try
one out before buying. Nothing like having it in your hands (or
in your case, having your eye in the viewfinder) to know how it
will look to your eyes).

Cheers,
Alan


--
-- rec.photo.equipment.35mm user resource:
-- http://www.aliasimages.com/rpe35mmur.htm
-- e-meil: there's no such thing as a FreeLunch.--