- Leica Ernst Leitz GmbH Wetzlar Summicron 5cm F2 Product status C/Normal Serial Number: 1020634 Aperture Aperture: 2-16 / Number of blades: 10 Mount Leica L39 mount Accessories: ・ Front lens cap Operation: The operation has been confirmed. The focus ring, aperture ring, and aperture blades operate smoothly.
- The 50mm lens is my favorite focal length for the Leica M system, and one of the biggest reasons for this is because of my relationship with the 50 Summicron. When I received my first camera (a Leica M3), this was my first lens (borrowed from my dad), and it was my only lens for many years to come.
In 1956, Leitz introduced a rigid version of the 50mm f2 Summicron, the revolutionary lens first offered as a collapsible version in LTM in 1953 and in M mount in 1954. The 1956 rigid version constituted a revised optical design with a harder front element and deeper rear element. A “Dual-Range” M mount rigid version was also introduced at this time.
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Leica M 50/2 Dual Range Summicron
The 50/2 Dual Range Summicron is one of the most interesting Leica M lenses with the closest rangefinder coupled focusing of any M lens. The removable 'eyes' provide parallax corrected viewing in the close focus range. The flat dovetail mounting base for the eyes gives the DR has a unique appearance among Leica lenses. A popular lens in the user market, many photogs consider the DR their sharpest lens. A 50 DR had the honor of having the highest resolution ever tested by the now sorely missed American photography magazine, Modern Photography, at over 100 lines per mm. Using it in the close up range can be confusing, and so the detailed explanation below. If you want to shoot closer than .7 meters with your M camera, the Dual Range Summicron remains your most convenient choice to this day.
The eyes must be removed before mounting or dismounting the lens. Left pic shows lens mounted without 'eyes' close up attachment in normal focusing range, from infinity to one meter. The eyes will not mount in normal focusing range because the interlocking dovetail mount ball bearing can only be depressed in the close focusing range. Right pic shows close-up of the eyes dovetail mount with the ball bearing.
The classic chrome front caps are easy to lose, as well as dent or scratch. Use a modern plastic front cap in the field. Notice the eyes, there is some separation on the larger side, but it is still very usable.
2nd Version Dual Range Summicron with simpler Leitz logo on eyes and original vintage front lens cap
To use Close-up Focusing Range:
Mount the lens ( lens will not mount if eyes are attached)
Pull the focusing barrel AWAY from the camera body (barrel will pull outward about 3 mm)
In this extended position, rotate the focusing barrel towards the camera's advance lever
The square block of metal aligned with the focusing index mark in the pic above right, will lock in position at the 8 depth of field marking
You can now mount the eyes, because in this position the base of the eyes will depress the ball bearing in the lens barrel, allowing the eyes to mount
To dismount the eyes, you must return the lens barrel to the same position as when the eyes were mounted
With the eyes removed, you will now be able to dismount the lens
The lens barrel will remained locked until you once again pull the focusing barrel outward and rotate the barrel back to the normal focusing position
The 50/2 Dual Range Summicron was made from 1956 to 1968, only in chrome.
The pics don't adequately show the magnificent fit and finish of the Dual Range. A modern 50/2 Summicron is probably sharper, but side by side, there is no contest on which one is the better made. Until you hold them side by side in your hands, you won't fully appreciate the construction differences of the classic 50's and 60's lenses compared to modern lenses. For Visoflex fans, the focusing head of the DR will unscrew for bellows close up work.
Compatibility: Leica has confirmed that the DR will not mount on all M6, due to internal changes of the film chamber. Try the DR on your M6 before you buy it, if possible. While the DR will mount on the Leica CL, Minolta CLE, the close-up attachment will not line up properly to these camera's viewfinders in the close focusing range. At least some DR's will fit and work fine on the Konica Hexar RF, with its near copy of the Leica M RF/VF. This is the only non Leica M camera that I know of which will allow the DR to work in the close-up focusing range. The DR will NOT mount on any digital Leica M8/8.2/9/10 that I have tried. Something about the lens mount is not the same as most Leica M lenses.
Unlike most Leica rangefinder 50mm lenses, the lens head of the Dual Range unscrews for use for close-ups on the Leica Visoflex system.
This is the first version with E. Leitz enlarger condenser logo on the close up eyes.
Earlier DR's have a single feet or meter focusing scale, and clip on eyes with the E. Leitz enlarger condenser logo, as shown on the top photo of this page, and focus to 19.' Later DR's have a dual feet and meter focusing scale, with a simpler Leitz logo, and focus to 20.' The optics in both versions are generally believed to be identical. There may well be other variations as well. As pointed out to me by Leica expert Marvin Moss, the ball bearing mount on the earlier lenses is larger than on the later lenses. This results in the earlier close up attachment with the Leitz condenser logo fitting on later lenses, but not vice versa.
Some dual range lenses have the lens head serial numbers engraved on the inside of the focusing helical
If you plan to buy a Dual Range, there are a few things to look for: The DR's soft lens coating scratches easily. The Leica glass of the period often gains a bit of haziness with the years. Shine a light through the lens from both ends. If fogged, the lens should be disassembled and cleaned by your Leica repairman. If you find a lot of scratches, don't buy it since recoating is expensive and takes a true expert. DR's often are sold without the close up attachment eyes. If your focusing helical has a serial number engraved, make sure it matches the serial number of the lens head. Finding the correct eyes for sale may take a lot of looking. Remember the 1st and 2nd versions don't mount the same eyes. Separation in the eyes is not that unusual, but seldom is the viewing affected, and of course there is no effect on the pictures- but it lowers value of the eyes by 50%. A nice little leather case was made for the eyes, and is hard to find only if you are looking for it. The DR takes standard Leica 39mm filters. My favorite DR hood is the versatile multi-purpose vented hood # 12585, which also thankfully fits the pre-ASPH 35/2 Summicron, the 35/3.5 and 35/2.8 Summaron, the 50/2 Summicron, the 50/2.8 Elmar (classic version), 90/2.8 Tele-Elmarit, 90/2.8 Elmarit, 90/4 Elmar, 135/4 Elmar and 135/4.5 Hektor. The proper vintage front cap is beautifully finished chrome with an embossed Leica script. Unfortunately the pretty classic chrome caps are easy to lose, so I suggest using a modern plastic front cap in the field.
1st version Dual Range mounted on a double stroke Leica M3
Today the 50/2 Dual Range Summicron remains unique in the Leica M system, a favorite of users and collectors alike.
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Revised: June 12, 2012 . Copyright © 1998-2012 Stephen Gandy. All rights reserved. This means you may NOT copy and re-use the text or the pictures in ANY other internet or printed publication of ANY kind. Information in this document is subject to change without notice. Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders.
In 1956, Leitz introduced a rigid version of the 50mm f2 Summicron, the revolutionary lens first offered as a collapsible version in LTM in 1953 and in M mount in 1954. The 1956 rigid version constituted a revised optical design with a harder front element and deeper rear element. A “Dual-Range” M mount rigid version was also introduced at this time. Leitz produced this “second version” rigid Summicron, both normal and dual-range, between 1956 and 1968.
Between 1960 and 1963, Leitz also produced 1160 copies of this rigid second version in LTM, making it one of the rarer and most valuable Summicrons produced. Of course, its rarity soon encouraged the assembling of fakes; the rigid Summicron’s lens head can be unscrewed from the rigid mount, and Leitz complicated matters by supplying rigid mounts in LTM for a few years so that owners of M and LTM bodies wouldn’t have to buy two lenses but could simply swap one lens head between two different lens mounts, M or LTM.
The end result is that it’s a good possibility that the LTM Rigid Summicron you’re being offered for sale is a frankenlens and not a true factory assembled version. The situation becomes further confused in that the true focal length of the rigid Summicrons differed slightly, depending on the version – 51.6, 51.9 or 52.2 – while the LTM rigid mount required a specific 51.9 focal length lens head, and many of these self-assembled lenses contain 51.6 or 52.2 lens heads mated to LTM rigid mounts.
Leica 50mm Summicron Review
How can you tell you’re looking at a rare factory assembled example instead of one made up from a replacement focusing mount and a non matching lens head? Fortunately, on the factory assembled models Leitz engraved the serial number of the lens both on the lens head and on the detachable lens mount. If these serials match, you’ve got a legit factory assembled LTM Rigid Summicron; if not, you’ve got a self-assembled frankenlens with potential focal length compatibility issues, one that can’t claim to be among the 1160 produced by Leitz.
A further complication in identifying a real factory produced version is that Leitz apparently produced them in dribs and drabs instead of one sequential run of 1160 consecutive serial numbers. According to Dennis Laney’s Leica Collector’s Guide, accepted serial number ranges for a legit copy are 1,599,XXX, 1,704,XXX, 1,706,XXX, 1,762,XXX, 1,763,XXX and 1,885,XXX, “but, as always with Leitz, the fact that a lens falls outside of this range does not necessarily mean it is not original” [Laney’s words]. The litmus test is the matching serial numbers.
Summicron 50mm F2 Serial Numbers Diagram
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Leica Summicron 50mm F 2
I was recently contacted by Bill Moretz, the owner of a reputable brick and mortar photo establishment in business since 1988 doing repair and photo lab services and equipment rental – asking me about a rigid Summicron he had in inventory he wasn’t quite sure exactly what it was. I had him send me some pics, did a little research, and then asked him to remove the mount from the lens head to see if the serials matched. They did. His rigid thread mount Summicron is a rare factory assembled original, serial number 1,607,043. According to Bill, everything in great condition optically and mechanically.
Bill has asked that I put the word out through the blog that the lens is for sale, and I told him I’d be happy to do so in order that he might avoid the pitfalls of Ebay and the various ways dishonest buyers devise to scam honest sellers out of collectible items. He’s asking $1950 plus insured shipping charges of $30 within the States. In my opinion, that’s a great deal as I see undocumented versions with various optical issues offered from anywhere between $1700 on the low end to $2800-$3000 on the high end. It comes with the original matching Leitz hood and lens cap.
Leica Summicron 50mm F2 Reviews
If you’re interested, contact me at leicaphilia@gmail.com.