The original x42 SLC was introduced in 1992 in 7x42 and 10x42. Both remained in production until 2010, when the all new x42 SLC was introduced in 8x42 and 10x42
In relation to what’s known about the optics:
• The original design had an objective of 3 elements in 2 groups (1 + 2 focusing); and an eyepiece of 5 elements in 3 groups (2 + 1 + 2)
• The current design has an objective of 4 elements in 3 groups (1 + 2 + 1 focusing); and an eyepiece of 5 elements in 3 groups (2 + 2 + 1)
. . . the new model includes HD glass - it’s the third lens in the objective group
(see Clay Taylor of Swarovski in the post of 9th October 2013 at: http://www.opticstalk.com/differences-between-swarovski-slc-and-el-binocular_topic38579_page1.html )
. . .
The 2010 version is identifiable by the blackened exposed metal in the bridge area (similar to that on the EL line),
and in contrast the 2013 version has an all over two texture RA covering . . .
The 2013 version also has a simplified focuser mechanism, with a greater minimum focusing distance: 3.2 m/ 10.5 ft verses 1.9 m/ 6.2 ft
However, there is no indication that the optical construction was modified
Both the 2010 and 2013 versions have 9 lenses per side, along with 2 prisms. See a cutaway view of the 2010 version,
along with a current specification sheet for the 2013 version
And although the 2013 version is no longer marked HD, it still has one HD lens in each objective
The 2013 modifications seem to have been to provide greater differentiation between the SLC and EL SV lines (both in performance and price)
And a similar change has again occurred with the introduction of NL x42:
the EL x42's focus mechanism has been simplified, with a greater minimum focus distance of 3.3 m verses 1.5 m,
and it's now identified as the Legend version
. . .
John, your posts and 'replies to yourself' if you see what I mean are very interesting, as I have been using my late autumn acquisition — SLC 7x42 Neu from a BirdForum member — during the lockdown and though I like it a lot and don't have the SLC 8x42 with lengthened focus (i.e.2013 'dinosaur skin' version) with me to compare my memory is definitely telling me that the 2013 8x gives a contrastier, richer image in some way.And heading off the inevitable query, also see some images of the new SLC x56 that was introduced in 2013
(it replaced the original pattern SLC neu that continued until 2013)
As can be seen, the 2013 SLC x56’s construction is mainly similar to that conventionally used on Swarovski roof prism models
John
Thanks, John. Just thought I'd ask in case I missed something. When it comes to these matters, Swarovski is a house of riddles.Hi Ed,
Unfortunately not. The most recent published cutaway images from Swarovski, are now around 10 years old
e.g. included in their 2011 catalogues were:
• the new version of the x42 SLC introduced in 2010, and
• the x42 EL SV, also dating from 2010
And there was also a disassembled x42 EL FP in the 2015 catalogues
. . . so perhaps a hint to Swarovski?
With many products it’s not unusual for engineers to repeatedly revise a design during production, for a variety of reasons
e.g. to address weak points, to use different sourced materials, to incorporate newer production technology
It’s just that typically consumers are not aware of such internal changes
Hi John (your quote in post no.10 from a previous post),In this instance, the internal changes seem to have been those that Swarovski could most easily make, without any effect on the optical performance
i.e. there is no indication of any optical change between the 2010 and 2013 models, and all the available information indicates that optically
they are the same
- - - -
Your original series 7x42 SLC (a very late production unit from early 2010?) - using an optical design dating from the early 1990’s -
will have a variety of slightly different optical characteristics, compared to the all new SLC design of 2010
Firstly, in terms of the basic optical design the two are significantly different. And secondly, the 2010 design incorporates 20 years of additional
optical experience by Swarovski, including the balance of optical characteristics that they wanted the new model line to have
If the rep knew what he was talking about, saying that Swaro SLCs are made with different batches of Schott glass that can produce different color hues (biases) and/or contrast in any given sample is a revoltin' development! It's tough enough that it's a crap shoot as to whether or not you will get a sample with a smooth focuser or a real grinder, but then not knowing what the color bias and/or contrast it's going to be before buying it is problematic, particularly if you plan on buying one online. Even if you compare different samples at a store, they might all be from the same glass batch and not be the same as you might see at another store.Another note,..we also talked about coating tweaks and/or differences in coating. I was told they use the same coatings and have for a while. They claimed what gives a same binocular/scope or model/sample, say 10 els/specs of the same year slightly different views ,.. say one has green lenses, one has reddish, one has purple, the other a yellowish, that’s not a change in coating rather different batches of glass and how magnesium fluoride reacts to slightly different batches. In turn this can also have an affect on color hue and/or contrast of the actual instrument.
I think you're talking about the original "SLC HD" model (in both 8 and 10x) from about 2010-12, which had that bicolored armor and also a closer focus, but otherwise the same as the final model with pebbly armor. The "Neu"s were black only on the central bridge itself, had the old style focus/dioter knob as well as lacking the newer glass type.I seem to recall a SLC 8X42 neu model, green armor with black color armor along the hinge