![]() ![]() It replaces Canon’s older EF-M 18-55mm as the standard zoom of choice. Typical of Canon’s EF-M lenses, this one is available in black (or dark grey, to be exact) but you can also buy it in silver. Read more: The Sigma 16mm f/1.4 DC DN | C review (opens in new tab).Typical of ‘fast’ f/1.4 lenses, there’s no optical image stabilizer but it’s a superb wide-angle prime that’s tremendous value at the price, and arguably the best lens you can buy for your EOS M system. The complex optical path includes three top-grade FLD (‘Fluorite’ Low Dispersion), two SLD (Special Low Dispersion) and two glass moulded aspherical elements, all of which work together to deliver sumptuous image quality. Build quality is very good indeed, with a sturdy metal mounting plate and smooth-action focus ring, electronically coupled to a fast and near-silent stepping motor autofocus system. However, when we reviewed the Sigma 16mm f/1.4 DC DN | C, we were blown away by the quality inside and out. Even so, considering its combination of a 16mm focal length (25.6mm ‘effective’ in full-frame terms) and a fast f/1.4 aperture rating, it’s still remarkably small and light, typical of Sigma’s ‘Contemporary’ line-up of lenses. Note that this is not always the same as when it first shipped - some lenses were 'previewed' a long time before they were officially released (the 200-400 being a notable example).Compared to most own-brand Canon EF-M lenses, this Sigma is comparatively weighty at 405g. When was a lens announced, and is it still a current model? The 'revision' code is not certain, with a 2014 50/1.4 starting 17080xxx - OK for 17 (May 14), but '0' for the rev code? The digit '5' for a revision code is also reasonable for a lens that's been around for a few years (1993), but we are left with a 5 digit serial number. The lens was purchased in March 2012, so the code '83' for October 2011 is reasonable. The code seems to work for modern 'L' lenses, but take this example of an EF50/1.4 If you find a change in codes, please do let us know and we'll see what we can add to this info. The figures here should be taken as a guide. We believe the code was reset to 01 for Jan 2013 - but this is still not known for certain. How to interpret the date code? It's been suggested that the code starts in January 2008 with the number 38 and increments each month of the year. The remaining seven digits '0001555' are a basic serial number (this was a very early lens - one of the first shipped in the UK) The next number '0' is believed to be a batch or manufacturing revision number (it has been used in the service/recall process) In this case '79' equates with June 2011' The first two digits are a date code, indicating month and year of manufacture. This is indicated on this EF8-15 f/4L fisheye zoom 7900001555 Note that the codes have become less common on recent lenses, with serial numbers in a different 'xx y zzzzzzz' format. Starting in 1990, Canon only date coded some specific lenses All L-series lenses The 3rd and 4th digits are an internal Canon manufacturing code. 2014) is consistent with the box date (Oct. It seems that the old date code system is still in use - a TS-E17 UC0903 (Sept. This TS-E24 mk2 lens 'UD0406' was purchased in 2015 (box dated May 2015) The date codes restarted at 'A' again in 2012. So the UC1204 Canon Date code would indicate a lens made at Utsunomiya in December 1988 The second letter is the year the lens was made A = 2012, 1986, 1960 The first letter indicates the manufacturing site: Some older Canon lenses are stamped with a manufacturing code consisting of two letters and (typically) four numbers.īefore 1986, the code may be in a letter/4 digit/letter format Canon lens date codes and EF lens chronology Lens manufacturing codes
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