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Tom's Hardware > Forum > Digital Camera > Digital Camera General > Nikon D70 and non-CPU lenses

Nikon D70 and non-CPU lenses

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Anonymous   02-21-2005 at 05:36:42 AM

Archived from groups: rec.photo.digital (More info?)

 

Hello All,
I have a D70 and am trying to figure out if it can be used at all with
non-cpu lenses. I saw a picture taken with a D70 using a telescope, so I
figure this was non-cpu, but I cannot figure out how to do this. I tried to
mimic a non-cpu lens with my ED 80-200mm zoom. On this lens there is a
minimum aperture lock lever which can be switched to a position where the
camera does not operate the f-stop. If I disable automatic f-stop setting
with this lever, then the camera will not function at all, there is no way
to set the shutter speed, and the shutter release is disabled. What am I
missing or doing wrong here? Oh yes, I was in manual mode!

Thanks,
Tom

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Anonymous   02-21-2005 at 05:36:43 AM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

On Sun, 20 Feb 2005 23:36:42 GMT, in rec.photo.digital "Tom H."
<tom_reader@att.nospam*.net> wrote:

>Hello All,
>I have a D70 and am trying to figure out if it can be used at all with
>non-cpu lenses.

RTFM? From p. 184:
Compatible Non-CPU Lenses
Non-CPU lenses not included in the list above can be used, but only in mode
M. Aperture must be adjusted manually using the lens aperture ring and the
camera exposure meter, depth-of-fi eld preview, and i-TTL fl ash control
can not be used. If another mode is selected when a non-CPU lens is
attached, the shutter-release will be disabled.
----------
Ed Ruf Lifetime AMA# 344007 (Usenet@EdwardG.Ruf.com)
See images taken with my CP-990/5700 & D70 at
http://edwardgruf.com/Digital_Phot [...] index.html

Reply to Anonymous
Anonymous   02-21-2005 at 05:36:44 AM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

"Ed Ruf" <egruf_usenet@cox.net> wrote in message
news:9i9i1110lvtnp5qnurrbsfu31mhso3jo6n@4ax.com...
> On Sun, 20 Feb 2005 23:36:42 GMT, in rec.photo.digital "Tom H."
> <tom_reader@att.nospam*.net> wrote:
>
>>Hello All,
>>I have a D70 and am trying to figure out if it can be used at all with
>>non-cpu lenses.
>
> RTFM? From p. 184:
> Compatible Non-CPU Lenses
> Non-CPU lenses not included in the list above can be used, but only in
> mode
> M. Aperture must be adjusted manually using the lens aperture ring and the
> camera exposure meter, depth-of-fi eld preview, and i-TTL fl ash control
> can not be used. If another mode is selected when a non-CPU lens is
> attached, the shutter-release will be disabled.
> ----------

Don't feel bad. I have a bunch of non CPU lenses and I'm always forgetting
to set the camera to M when I change from the kit lens.

Reply to Anonymous
Anonymous   02-21-2005 at 07:18:25 AM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

Ed,
Yes, I read that in the manual, but then when I did the "test" with my lens
switched to "f-stop not controlled by camera" the camera became essentially
non-functional i.e. no ability to control shutter speed and disabled
shutter release even in *mode M*. Well as it turns out that "test" has a
problem. Since I posted the original message, I did another test, this time
with no lens at all on the camera. Now, I could control the shutter speed
and trip the shutter. So, it looks like that I should be able to couple
something like a telescope to the camera if I can get the appropriate
adapter. I have to make sure that whatever adapter I get does not appear
like to the camera to be a lens with the camera control of aperture switched
off.
The manual is also pretty silent on just what you *can* do with the non-cpu
lenses in M mode, but the implication is there that one should be able to at
least trip the shutter; in my so-called test, I could not even trip the
shutter. It is a shame that Nikon did not design the camera so that the
light metering function would operate with non-cpu lenses. As it is now I
will have to guess or take a reading with an external light meter.
Fortunately guessing with a digital camera is not so bad as with film
because of the ability to see the image immediately.

Tom
"Ed Ruf" <egruf_usenet@cox.net> wrote in message
news:9i9i1110lvtnp5qnurrbsfu31mhso3jo6n@4ax.com...
> On Sun, 20 Feb 2005 23:36:42 GMT, in rec.photo.digital "Tom H."
> <tom_reader@att.nospam*.net> wrote:
>
>>Hello All,
>>I have a D70 and am trying to figure out if it can be used at all with
>>non-cpu lenses.
>
> RTFM? From p. 184:
> Compatible Non-CPU Lenses
> Non-CPU lenses not included in the list above can be used, but only in
> mode
> M. Aperture must be adjusted manually using the lens aperture ring and the
> camera exposure meter, depth-of-fi eld preview, and i-TTL fl ash control
> can not be used. If another mode is selected when a non-CPU lens is
> attached, the shutter-release will be disabled.
> ----------
> Ed Ruf Lifetime AMA# 344007 (Usenet@EdwardG.Ruf.com)
> See images taken with my CP-990/5700 & D70 at
> http://edwardgruf.com/Digital_Phot [...] index.html

Reply to Anonymous
Jim   02-21-2005 at 09:01:00 AM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

"Tom H." <tom_reader@att.nospam*.net> wrote in message
news:BFaSd.60568$Th1.57637@bgtnsc04-news.ops.worldnet.att.net...
> Ed,
> Yes, I read that in the manual, but then when I did the "test" with my
lens
> switched to "f-stop not controlled by camera" the camera became
essentially
> non-functional i.e. no ability to control shutter speed and disabled
> shutter release even in *mode M*. Well as it turns out that "test" has a
> problem. Since I posted the original message, I did another test, this
time
> with no lens at all on the camera. Now, I could control the shutter speed
> and trip the shutter. So, it looks like that I should be able to couple
> something like a telescope to the camera if I can get the appropriate
> adapter. I have to make sure that whatever adapter I get does not appear
> like to the camera to be a lens with the camera control of aperture
switched
> off.
Well, I don't know what you are doing wrong, but I just got through making
test shots of the moon with my 300mm f4 and non-cpu 2x converter. I
certainly had no trouble. I have also tried a coupld of AI-S lenses with no
trouble. I don't own a lens similar to yours...
> The manual is also pretty silent on just what you *can* do with the
non-cpu
> lenses in M mode, but the implication is there that one should be able to
at
> least trip the shutter; in my so-called test, I could not even trip the
> shutter. It is a shame that Nikon did not design the camera so that the
> light metering function would operate with non-cpu lenses. As it is now I
> will have to guess or take a reading with an external light meter.
> Fortunately guessing with a digital camera is not so bad as with film
> because of the ability to see the image immediately.
According to the manual, the electronic rangefinder will work with non-cpu
lenses if they are at least f8. The situation here is about the same as the
N90s by the way.
Jim

Reply to Jim
george   02-21-2005 at 07:18:26 AM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

"Tom H." <tom_reader@att.nospam*.net> wrote in message
news:BFaSd.60568$Th1.57637@bgtnsc04-news.ops.worldnet.att.net...
> Ed,
> Yes, I read that in the manual, but then when I did the "test" with my
lens
> switched to "f-stop not controlled by camera" the camera became
essentially
> non-functional i.e. no ability to control shutter speed and disabled
> shutter release even in *mode M*. Well as it turns out that "test" has a
> problem. Since I posted the original message, I did another test, this
time
> with no lens at all on the camera. Now, I could control the shutter speed
> and trip the shutter. So, it looks like that I should be able to couple
> something like a telescope to the camera if I can get the appropriate
> adapter. I have to make sure that whatever adapter I get does not appear
> like to the camera to be a lens with the camera control of aperture
switched
> off.
> The manual is also pretty silent on just what you *can* do with the
non-cpu
> lenses in M mode, but the implication is there that one should be able to
at
> least trip the shutter; in my so-called test, I could not even trip the
> shutter. It is a shame that Nikon did not design the camera so that the
> light metering function would operate with non-cpu lenses. As it is now I
> will have to guess or take a reading with an external light meter.
> Fortunately guessing with a digital camera is not so bad as with film
> because of the ability to see the image immediately.
>
> Tom

You can do the following with a non-cpu lens:
use it on the camera in manual mode only, manual focus (with in-focus
indicator
operative), no metering, set any aperture and shutter speed you wish and
trip the
shutter. Options for knowing what aperture/shutter speed to set are to use
an
external meter, sunny 16 rule, or guess and view histogram.

Just a couple hours ago, I used my D70 w/18-70 in manual exposure / auto
focus
mode to take some baby photos for friends with studio flash w/o any
problems.
Because I was setting the exposure, I went to the CSM and turned off "auto
ISO"
as I couldn't have that being unpredictable. And, I have used the camera
with several
non-CPU lenses going back to 1973 (actually, some are AI converted
lenses...THAT
is old).

Good luck,
George

Reply to george
Jim   02-22-2005 at 01:12:42 AM
- 0 +

Archived from groups: rec.photo.digital (More info?)

 

"Tom H." <tom_reader@att.nospam*.net> wrote in message
news:ea9Sd.250982$w62.89639@bgtnsc05-news.ops.worldnet.att.net...
> Hello All,
> I have a D70 and am trying to figure out if it can be used at all with
> non-cpu lenses. I saw a picture taken with a D70 using a telescope, so I
> figure this was non-cpu, but I cannot figure out how to do this. I tried
to
> mimic a non-cpu lens with my ED 80-200mm zoom. On this lens there is a
> minimum aperture lock lever which can be switched to a position where the
> camera does not operate the f-stop. If I disable automatic f-stop setting
> with this lever, then the camera will not function at all, there is no way
> to set the shutter speed, and the shutter release is disabled. What am I
> missing or doing wrong here? Oh yes, I was in manual mode!
You didn't see the flashing FEE in the LCD panel. This sign means that you
are trying to do something that the camera cannot. Yes, indeed, the camera
will not take a picture in such a configuration.
It won't take the shot in any mode.

Anyway, you can't mimic the effect of a non-CPU lens that way on the D70.
It will take much more than just resetting the aperature ring to do that.

Instead, in manual mode, leave the aperature ring at the minimum aperature,
and use the camera to set the aperature.
JIm
>
> Thanks,
> Tom
>
>

Reply to Jim
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