[rollei_list] Re: Rolleigrid
- From: "Evan Dong" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "ejdong@xxxxxxxxx" for DMARC)
- To: "rollei_list@xxxxxxxxxxxxx" <rollei_list@xxxxxxxxxxxxx>
- Date: Mon, 22 Dec 2014 00:47:33 +0000 (UTC)
Carlos,
That dealer is rascal. Another day for that story.
That screen is NOT a Rolligrid. I have plenty of RolleiGrid drop-in screens and
it dies what it can for me. The RolleiGrid is a drop in fresnel screen to
enhance the original ground glass screens or the first generation plastic
focusing scrrens by Rolleiflex.
eBay Auction: 271701375806 is an actual "Plastic" Ground Glass Screen which
use the gridline pattern through out. There is NO Central Spot magnifier nor
any Split Image wedge finder. Just a plain fresnel screen with a gridline
pattern etched into it. This scrren is NOT a first generation plastic focusing
screen. Guessing it by it clarity, I would think its one of the last generation
of the plastic focusing screen such as that used in the Rolleiflex T and all
other REMOVABLE Screen Rolleiflex. Its rather hard to describe, till you have
it in your hand.
However it has the micro fresnel surface beneath it to help with light
gathering and allows for the "Snap - To" Contrast Gain.
In addition, I just had some special Mamiya RB67 screens cut down to Rolleiflex
REMOVABLE Screen size and etched with grid line pattern. Rick Oleson did it for
me and he likes the quality of the screen. I will be testing it out and if it
works, I will try to help him obtain some quantity..
On Sunday, December 21, 2014 7:16 PM, CarlosMFreaza <cmfreaza@xxxxxxxxx>
wrote:
Hello Evan: Thank you for your message. I bought my Rolleigrid
from a seller off auction sites. There is a significant difference between the
item you mentioned in eBay and my Rolleigrid: 1) The eBay item 271701375806
does not have the central circle without the Fresnel lens that allows critical
focusing using the ground glass directly, mine has it; 2) The sleeve in the
item you mentioned is black and the word "Rolleigrid" is not visible in the
photographs, mine has the typical reddish/brownish sleeve (and the F&H box too)
with the word "Rolleigrid" and "Germany", the eBay item says "Made in Germany".
They are not the same screen.
I compared the Rolleigrid on the 2.8C GG with the original Rollei Clear
focusing screen with split image in my 3.5F viewfinder. Image brightness,
contrast and details look identical for any lighting situation, except the
central circle for the Rolleigrid. I waited for these results since the
removable Rollei Clear is a Fresnel and GG combo that replaced the
GG+Rolleigrid combo at the time.
Carlos
2014-12-21 20:07 GMT-03:00 Evan Dong <dmarc-noreply@xxxxxxxxxxxxx>:
Carlos,
You may want to look into these limited Plastic Ground "Glass" Screen offered
by Rolleiflex at one point.
Those screens listed (see eBay Auction #) are authentic Rolleiflex screen for
the non-removable models.
Below is the auction from the same guy that offered the Type 2 screen. Just be
aware!
eBay Auction: 271701375806
I bought several of these here in NY Vinicity off of eBay. The seller had a
photo store that went out of business. I bought them for $20 each..
Planning on installing them into a 1949 Rolleiflex Automat Standard and several
other camera bodies: 3.5 B (10 blade) & MX-EVS Type 1 & 2.
Viewing through them in open light, it is identical to the later Removable
Rolleiflex screen.
Hope this will be of some help to you.
Evan
On Sunday, December 21, 2014 5:37 PM, CarlosMFreaza <cmfreaza@xxxxxxxxx>
wrote:
2014-12-21 2:18 GMT-03:00 Richard Knoppow <dickburk@xxxxxxxxxxxxx>:
----- Original Message ----- From: "CarlosMFreaza" <cmfreaza@xxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Saturday, December 20, 2014 3:34 PM
Subject: [rollei_list] Re: Rolleigrid
including the corners. The Rolleigrid does not require to adjust the main
focusing screen as you wrote; you put it on the ground glass and it's ready
to use. I'll buy another Rolleigrid for the 'cord IV when I have a chance
to do it.
Carlos
It makes a more noticeable difference on the 'cord because of the slower
finder lens.
*********************
Yes Richard, I put the Rolleigrid on the 'cord IV ground glass and the image is
clearly brighter and more uniform regarding light distribution. The difference
f3.2 vs f 2.8 'cord vs 'flex viewfinder lens is not perceptible for daylight
(at least it's my experience with the IV vs 2.8C), however it becomes
noticeable indoors or under difficult lighting conditions, but I think lenses
luminosity is not a "dramatic" difference anyway.
The Rolleigrid was manufactured from July 1953 up to 1961. I "discovered" two
Rolleigrid types (at least they are not separately described in my Rollei
literature, including Prochnow); one of them, "type 1", has the marks on the
edges and corners to secure it with the elements in the camera viewfinder (used
to secure the Rolleikin mask); "type 2" does not have these marks, it only lies
on the ground glass as a gravity matter, my Rolleigrid belongs to the second
type. These are samples for each type:
Type 1:eBay item 121517421514
Type 2:eBay item 281536069360
Carlos
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