Difference between revisions of "Acro Model R"

From Camera-wiki.org
Jump to: navigation, search
m (Stream ID put into human-readable form)
(Replaced 'specifications' table with text, and added wikilinks. Made top picture bigger)
Line 1: Line 1:
 +
<div class="floatright plainlinks" style="margin:0px 0px 15px 15px;">
 
{{Flickr_image
 
{{Flickr_image
 
| image_source= http://www.flickr.com/photos/maderik/3709033404/in/pool-camerawiki/
 
| image_source= http://www.flickr.com/photos/maderik/3709033404/in/pool-camerawiki/
| image= http://farm3.static.flickr.com/2598/3709033404_b86e82c46a_m.jpg
+
| image= http://farm3.static.flickr.com/2598/3709033404_b86e82c46a.jpg
 
| image_align= right
 
| image_align= right
 
| image_text= Acro Model R
 
| image_text= Acro Model R
Line 7: Line 8:
 
| image_rights= non-commercial
 
| image_rights= non-commercial
 
}}
 
}}
 +
</div>
 +
The '''Model R''' is a half-frame (i.e. 3x4 cm) uncoupled-rangefinder camera for 127 film, made by [[Acro]] circa 1940. It makes sixteen pictures on a roll of film. It has a plastic body, of a type similar to many 'minicams' made by companies of the ''[[The Chicago Cluster|Chicago cluster]]'', but with a rather better lens and shutter unit than those cameras, mounted on a metal plate screwed to the front.
  
The '''Model R''' is a half-frame 127 film camera made by [[Acro]] circa 1940.
+
The camera has a two-inch lens, either an f/4.5 Acro Anastigmat or a Wollensak f/3.5.<ref name=McK>{{McKeown12}} p7.</ref> The lens has unit focusing and is scaled down to 3 feet. The shutter is an [[everset]](self-cocking) in-lens type, giving speeds 1/25 - 1/200 plus 'B' and 'T'. It has a socket to accept a cable release.
  
== Technical Specifications ==
+
The split-image rangefinder is a metal unit fastened to the top of the camera. It houses a reverse-Galilean viefinder (separate from the rangefinder), and an [[lightmeter#extinction meter|extinction-type lightmeter]]. there is a calculator dial for interpretation of the meter reading on top of the unit.
* Type: 3x4 viewfinder
 
* Film: [[127 film]]
 
* Picture Size: 3x4cm (aka 127 half-frame)
 
* [[Lens]]: 2-inch anastigmat
 
* [[Aperture]]:  f/4.5 or f/3.5 to f/18
 
* [[Shutter]]: Self-cocking. speeds 1/25, 1/50, 1/100, 1/200, B and T
 
* [[Viewfinder]]: simple optical
 
* [[Rangefinder]]: Uncoupled split image
 
* [[Light meter]]: Extinction type
 
  
{{Flickr_image
+
There are two [[red window]]s on the back, with a rotating disc cover (two, because 127 film is only numbered 1-8; each number is wound into each of the two windows, to give sixteen exposures).
 +
 
 +
There is also an Arco '''Model V''' which has the same lens and shutter unit (though McKeown lists the Model V only with the Arco lens<ref name=McK></ref>) but has only a viewfinder on the top, no rangefinder or lightmeter.
 +
 
 +
McKeown notes the similarity of the cameras to Detrola 3x4 cm viewfinder cameras (the [[Detrola Model G]], [[Detrola Model H|Model H]] and [[Detrola Model K|Model K]]).<ref name=McK></ref>
 +
 
 +
<br style="clear:both;"/>
 +
{{flickr_image
 
|image_source= http://www.flickr.com/photos/camerawiki/5517254305/in/pool-camerawiki
 
|image_source= http://www.flickr.com/photos/camerawiki/5517254305/in/pool-camerawiki
 
|image= http://farm6.static.flickr.com/5015/5517254305_279b6c8496_z.jpg
 
|image= http://farm6.static.flickr.com/5015/5517254305_279b6c8496_z.jpg
Line 29: Line 30:
 
|image_rights= Public domain US no copyright
 
|image_rights= Public domain US no copyright
 
}}
 
}}
 +
 +
 +
==Notes==
 +
<references/>
  
  

Revision as of 01:17, 5 March 2012

The Model R is a half-frame (i.e. 3x4 cm) uncoupled-rangefinder camera for 127 film, made by Acro circa 1940. It makes sixteen pictures on a roll of film. It has a plastic body, of a type similar to many 'minicams' made by companies of the Chicago cluster, but with a rather better lens and shutter unit than those cameras, mounted on a metal plate screwed to the front.

The camera has a two-inch lens, either an f/4.5 Acro Anastigmat or a Wollensak f/3.5.[1] The lens has unit focusing and is scaled down to 3 feet. The shutter is an everset(self-cocking) in-lens type, giving speeds 1/25 - 1/200 plus 'B' and 'T'. It has a socket to accept a cable release.

The split-image rangefinder is a metal unit fastened to the top of the camera. It houses a reverse-Galilean viefinder (separate from the rangefinder), and an extinction-type lightmeter. there is a calculator dial for interpretation of the meter reading on top of the unit.

There are two red windows on the back, with a rotating disc cover (two, because 127 film is only numbered 1-8; each number is wound into each of the two windows, to give sixteen exposures).

There is also an Arco Model V which has the same lens and shutter unit (though McKeown lists the Model V only with the Arco lens[1]) but has only a viewfinder on the top, no rangefinder or lightmeter.

McKeown notes the similarity of the cameras to Detrola 3x4 cm viewfinder cameras (the Detrola Model G, Model H and Model K).[1]



Notes

  1. 1.0 1.1 1.2 McKeown, James M. and Joan C. McKeown's Price Guide to Antique and Classic Cameras, 12th Edition, 2005-2006. USA, Centennial Photo Service, 2004. ISBN 0-931838-40-1 (hardcover). ISBN 0-931838-41-X (softcover). p7.


Links