Patent: EF-S 18-100mm f/3.5-5.6 IS

[Canon Rumors]

A strange patent for an EF-S 18-100mm f/3.5-5.6 IS optical formula has appeared. I don’t imagine this patent is for a product we’re actually going to see, just something not that obvious in the design.</p>
<p>Patent Publication No. 2016-1224 (Google Translated)</p>
<ul>
<li>Published 2016.1.7</li>
<li>Filing date 2014.6.11</li>
<li>Focal length 18.59 47.22 94.99</li>
<li>F-number 3.60 4.92 5.88</li>
<li>Half angle of view (degrees) 36.31 16.14 8.18</li>
<li>Image height 13.66 13.66 13.66</li>
<li>The total lens length 137.78 158.04 178.30</li>
<li>BF 35.39 52.79 64.61</li>
</ul>
<p>Looking at the length of the lens, this doesn’t appear to be a compact design for a special DSLR either. We have seen patents for zoom lenses in the past that just seem to randomly end at 100mm.</p>
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[Joatamos]

Would be a shame if we didn't see a lens like this - perfect for travelling. Currently I use a 17-50 f2.8 Sigma on my 100D for when travelling with work which is great, but something a little longer would be useful.

 

[lol]

Given we already have the 15-85 and 18-135 lenses either side of this zoom range, it does seem a bit superfluous. Unless it brings something additional to the table.

 

[nhz]

Given we already have the 15-85 and 18-135 lenses either side of this zoom range, it does seem a bit superfluous. Unless it brings something additional to the table.

Yes, just as slow as the alternatives and very unlikely that this is a higher quality design ... I don't think it is a real alternative for the 15-85 because 15mm and 18mm is huge difference in practice. Maybe a more compact or even cheaper alternative to the 18-135 for small DSLRs like the SL2?

 

[ajfotofilmagem]

Perhaps it is part of the researching a new 17-85mm to replace that tired old lens?

 

[nhz]

Perhaps it is part of the researching a new 17-85mm to replace that tired old lens?

The 15-85 is generally considered to be the replacement of the 17-85.

 

[pj1974]

Perhaps it is part of the researching a new 17-85mm to replace that tired old lens?

The 15-85 is generally considered to be the replacement of the 17-85.

Indeed, the 15-85mm is both the replacement, and the upgrade to the 17-85mm. The 15-85mm improves on the 17-85mm in every way (IQ, IS, AF accuracy and build quality).

When I bought my first DSLR, I bought the 18-55mm kit lens as well as the 28-135m, (as I found I wanted more ‘tele’ at times, plus a USM). My 28-135mm was a modestly good lens, great for certain situations (but not wide on a APS-C DSLR). The wide end of the 17-85mm was notoriously soft, and I could get a new 28-135mm for a good price (half what I could get the relatively new 17-85mm at that time).

Soon after I bought the 15-85mm, I sold my 28-135mm. I decided to keep the cheap 18-55 for my 350D, as a ‘children’s backup’ or for an ultra small / light travel combination that might get ‘knocked around’ a bit, and it ‘would not matter too much if it got broke’.

Anyway, to the 18-100mm IS. I see no reason that Canon would produce this lens, UNLESS it had something very different to bring to the table (pancake zoom anyone? – but the specs indicate its not ‘pancake short’) or 6 stop image stabilisation?

The existing 18-135mm IS STM is a very decent lens if one prefers more reach than the kit 18-55mm IS STM (which is a decent lens in its own right). A 18-100mm patent is probably indeed just Canon ‘trying out ideas / some R&D’ – but with no real market purpose.

For me, the 15-85mm fits as the ideal solution as a ‘general purpose travel zoom’ – from reasonably wide (24mm in 35mm format) to a useable 136mm (in 35mm format). Its qualities (very good, but not quite prime IQ, 4 stop IS, fast, accurate USM AF).

I am glad seeing another EF-S lens patent appears to indicate Canon remains committed to the APS-C format. The ‘crop sensor’ fits a great balance for me in terms of size, cost and overall capability / image quality.

Regards,

Paul

 

[Wizardly]

What gets me is the size of this lens. I wonder if well see more patents in this range from Canon

 

[Don Haines]

What we don't know, is the optical quality of this lens. Canon has made some amazing strides forward recently, and this is probably more of the same.

There are several EF-S lenses are now better than the "pro" lenses of 30 years ago. I pick up my 40 year old Nikon and it is crude by comparison.....

 

[neonlight]

Surely some mistake? MOre likely EF-M?