We would like to announce that a firmware update for the SIGMA 24-70mm F2.8 DG OS HSM | Art for SIGMA, Canon, and Nikon is now available.
This firmware update corrects the phenomenon that the Manual Override (MO) function will be disabled after adjusting the settings of focus mode switch on SIGMA Optimization Pro (Macintosh ver.).
Sigma 24-70mm f/2.8 DG HSM OS $1299
For customers who own the SIGMA USB DOCK, please update the firmware via SIGMA Optimization Pro.
It is possible to update the firmware through either version (Macintosh / Windows) of SIGMA Optimization Pro.
Applicable product:

SIGMA 24-70mm F2.8 DG OS HSM | Art SIGMA / Canon / Nikon

The benefit of this firmware update:

Corrected the phenomenon that the Manual Override (MO) function will be disabled after adjusting the settings of focus mode switch on SIGMA Optimization Pro (Macintosh ver.).

SIGMA Optimization Pro Download page...

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Continue reading...

Don Haines said:

As to third party lenses and future problems, both Sigma and Tamron are using docks for most new lenses and this allows easy firmware upgrades

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Which is fine as long as the company in question still produce and support your lens. But look at this Tamron EF-M lens. How old is it? 5 years? And it doesn't look like they're going to support it with firmware updates any more. So you're screwed.

However, if you bought an EF lens for your Canon EOS 650 back in 1987 it will still work on any Canon EF body today. It may not be supported for spares or repair, but as long as the lens keeps working it will still work on your current camera body.

Apparently a new version of the lens has been released. Other than compatibility with the docking station, there appears to be no earth-shattering improvements.....

jolyonralph said:

The 24-105 is an absolute step back from the 24-70 2.8. The photos from the 24-105 are nowhere near as sharp, even with IS. It's a good general purpose lens but you'll be disappointed if you compare it.

The 28-70 is probably as good if not better than the 24-70, but is a massive heavy lens. Are you sure you want that?

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Act444 said:

Agreed...as a second body, though, I definitely see the appeal...

But to get to the question at hand. I can only speak for the EF versions, but the 24-105 is not the same class of lens (performance-wise) as the 24-70 2.8. If you are used to the IQ of the 24-70, the 24-105 gives you IS and extra reach at the cost of some IQ and a stop of light, and the 28-70 will give you an extra stop and (what appears to be) slightly better IQ at the cost of $$$, 4mm at the wide end, and more weight. If none of those compromises sound appealing, recommend either a) adapting your 24-70 to the new R or b) keeping the 5D4 and holding off on the R until more RF lens options become available.

ETA: if you are shooting mostly video, the 24-105 should be plenty adequate. The addition of IS may be worth it for you. If you have space to back up, you can still get pretty decent subject/background separation at 105mm f/4 on FF.

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AlanF said:

Keep the 5DIV, the EOS R is not an upgrade. Wait for the next iteration of R if you have s good body already. OK, the 5DIV may well be worth less then but the R will probably go down more when a higher spec successor appears.

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Don Haines said:

What about the 24-70 F4? Good quality and reasonable weight... If you are hauling it around all day, lighter weight becomes important....

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thanks for the detailed replies! Hmmit sounds like i should at the most part keep the 24-70mm lens in either case!

I noticed sometimes my hand held shots for photos can be sometimes slightly blurry hence why i thought i might benefit from the IS on the 24-105 lens.

Also, would the NEW 24-105 f4 lens for the EOS R be better then the EF one though? I guess we cant say until its released.

Read at: https://www.sonyalpharumors.com/sr5...ra-with-evf-in-the-middle-like-the-a7-series/

Rumors say: A Mini-A9 (cited from there)

My question: the new Fuji and this coming body - will they rise pressure on canon to do an update of the 7D MK II???

I have created a thread for this lens in the lens gallery section: https://www.canonrumors.com/forum/i...70-200mm-f-2-8l-is-iii-usm.35969/#post-747487

Great, thanks for the confirmation.

I won't get the opportunity to see this exhibit but I would like to say that I would recommend seeing almost any photography exhibit at the Getty. Their Photography curation is consistantly excellent. The best of any museum i get to regularly visit. I appreciate that they allow photographs to stand on their own merit and don't force them to fit a contrived notion of what constitutes art. They also have one of the finest collections of photgraphs in the world. So many museums, even in 2018, seem to be almost embarrassed to display photographs and it's reflected in the types of photographs they will display and the context they are displyed in. I never get that impression with the Getty.

Apparently he has discovered the benefits of hedging somewhat to pander to owners of different brands. Until he lands a single sponsor.

But overall, his review clearly favors the Sony. I can't agree with the title of your thread.

antonioleandro said:

Hi,

I am trying to use Canon EF 8-15mm f/4L to make some archictectural shots (façades of two or three story buildings in narrow alleys and very long façades in narrow alleys as well). What do you recomend to defish those images? I have already used my widest rectilinear lens (Sigma 12-24mm) but I still need a wider field of view, so I think a fisheye will be my best option.

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Personally I find stitching better than defishing. But when I want to defish I use Fisheye Hemi https://imadio.com/products/prodpage_hemi.aspx I like it particularly because it maintains perspective but straightens verticals. Take a look at it and the examples to understand what I mean, normal rectilinear corrections cut huge chunks off the corners and drag out the view in the corners so much they are not worth having.

Although it is a basic plug in there are many tricks you can do that will increase its utility and the output you get from it, you can even apply it twice to get full rectilinear, there are some great tutorials on YouTube. https://www.youtube.com/results?search_query=fisheye+hemi

mirage said:

i cannot see Canon adding f/6.3 lenses to EF portfolio all of a sudden, when they have avoided this for 30 years. For good reason: AF limitations beyond f/5.6 on most EOS DSLRs.

i could imagine f/6.3 lenses for R mount, because mirrorfree EOS R series cameras will/should be able to AF to f/11.

Whether or not f/6.3 is a "desirable open aperture" at 60 or 70mm focal length is for each potential user to decide. I don't think the difference in size, weight and price between a 16-60/3.5-6.3 and a f/3.5-5.6 are so huge to make it worthwile.

this said, i currently do own and use one Canon f/6.3 lens, EF-M 55-200 and have also been considering EF-M 18-150/3.5-6.3. Nothing else available from Canon and size/weight, focal length range, price make it "borderline acceptable" to me. Although i would really prefer f/5.6, especially on APS-C.

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I own all current EF-M lenses except the new 32mm. The 18-150 in particular is a super zoom lens. The 55-200 is the lens I use the least.

Click said:

Very nice series, CFB.

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Thanks click!

I think EVFs are getting better. But a quick use of the A9 compred to my 5DsR shows they are not there yet. Perhaps that of the R....

I've run out of troll food.

Mikehit said:

What I appreciated on McKinnon's vlog was that he talked about the downsides - contrast that with someone like Jason Lanier reviewing at Sony and he absolutely refuses to say anything negative at all about the gear.

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Jason Lanier comes across with a 'my way or the highway' style I do watch him sometimes even though I don't enjoy his presenting manner! If I had to nail it down to one reviewer then it's Dustin Abbott for me, I find his style less flashy and more honest/reasoned, it's not so much about him the person more about the way he presents his view, he choses not to slate something but explains in-depth the pros and cons of a particular piece of equipment, so the content of his work really make sense IMO and if you watch his youtube review of the Canon 50mm f1.2 you'll see what I talking about...

MTF chart looks pretty good!
if the price is appealing that'll make a nice addition to my K-mount kit.

That seems to be a running issue with mirrorless cameras and may come about by the push for smaller sizes - smaller size means less real estate to put buttons and dials and what buttons you do use are either large with a positive action or small and squishy. So they usually end up with a reliance on menus with ability to program a few buttons in a way that suits the user (aayhay! look how customisable it is) I think Fuji have got the balance best but it can't be easy to design

Mt Spokane Photography said:

My 5D MK IV seems to me to produce too much noise, I don't think it is any worse than my MK III was, but perhaps a different texture of noise. Obviously, a APS-C sensor is going to have even more noise, its definitely a issue in low light.

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This "issue" my body is suffering from in another way. If I take an HDR with 5 pictures, the gap between these shots must not exeed 0.5 stops. Otherwise, really big noise appears. But interestingly, not the dark pictures create this noise - the lighter ones do creat noise like clouding.
Some friends of mine do own 5D4 too, so we compared the bodies. And mine is the only to suffer tis "issue" from. Also, the sensor is giving me soft picturs. Fine for portraits, bad for landscape. CPS told me, my sensor is really creating soft pictures, but this no such an big issue that it has to be solved by an hardware exchange.

The early information is looking like it will be a very interesting camera. They're trying to provide some performance along with all those MP so a few might show up at sporting events where long lenses aren't required. Even if not, better AF performance is needed to put the thing into use for fashion and faster studio work.

I kinda hope they also add pixel-shift resolution enhancement... Just because I want a 300 to 500MB raw file to choke my editing machine with crazy amounts of detail.

BeenThere said:

Well , from your lips .... A GFX100S model is coming in 2019. 100 megapixels!
Rumored $10k price tag.

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Oly's press release event was painful to listen to (because it was info sparse and very slow paced) but they intend to focus on high performance small systems and I think they'll have more of that market to themselves soon enough. Their flagship is still my favorite camera to use, fast comfortable and well-featured and the IQ is PDG for a smallish sensor.
If they drop an even faster shooting body with global-shutter sensor into a high end body like the EM1 for their anniversary product in 2019 I'll be on it.
Lots of great lenses in the MFT suite but still waiting for a wide TS option.

Pentax had a very good mirrorless APC years ago. the K-01. Ugly brick of a camera but it worked well with the native K-mount legacy glass. Pity it didn't have even a bad EVF, the rear display was nearly useless in daylight. Their tiny q-mount cameras actually deliver pretty good IQ again for a PnS size sensor, lots of useful features and dang, they're just plain cute! Again, handicapped by lack of EVF.

I haven't played with a Ricoh GR but they have a passionate fan base.

Pentax K-1 is a lot of camera for the $ and IQ and build quality is top notch with more features than you can shake a smart phone at.

What these companies seem to have in common is a lack of marketing!

hkenneth said:

I am stupid...

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I get it it, you mistook the the lines for being wide open and f/8, like Canon does, rather than 10 and 30 lines. It’s Sigma who are stupid, not you, because they should have made it clear under the graphs.

Jethro said:

What is the pricing likely to be on the Laowa 100mm? I don't have a real sense of how they price their lenses.

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I hope its around 650$ mark max their 25, 15 and 60mm macros are priced very aggressively for the features they offer. Also for this new lens they have adopted electromagnetic diaphragm which might add 50-75$ to price of lens but its a good upgrade over their previous lenses.

Hi Andrew.
I’m guessing from what you have said that if you do have a programmable adaptor, any setting is accidental, you might have a look at the link, scroll down to the text just above the large pictures and the last couple of lines are how to avoid accidentally entering the setup menu, it might be worth having a look for reset!

https://www.ebay.co.uk/itm/CHIC-Ada...611831?hash=item25fdd876f7:g:uLcAAOSwciVbbqFb
Alternatively you could buy it for £8.50 and you can have one with a chip that works with a 5DIII, or if you are not in a hurry one from China for £3 that is chip 3.0 but doesn’t specifically say 5DIII (only 5D)!

Cheers, Graham.

Uses the L mount lens system. I wonder if Sigma actually makes the lens and re-badges it.

Ian_of_glos said:

What about the 400mm F2.8L iii and the 600mm F4L that were announced earlier this month? Don't they count?

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While these lenses are welcome updates of Canon's highest end EF lenses, they were likely in the pipeline for some time. I also expect that some of the updates help these lenses work better with the RF adapter, as Canon has already said that lenses released before 2012 will not take advantage of all available RF features.

The same tweaks for better RF performance might explain the strange case of the 70-200mm IS III update, which, otherwise, seems to be only a new paint job and less resilient lens coatings.

To repeat yet again, few posters here, if any, have claimed that Canon would immediately shut down production of EF lenses. I'm a Canon customer who believes that EF as the flagship, central lens mount for Canon is now in the rear view mirror. Yes, updates that cut production costs of existing, popular and very profitable per-unit lenses (such as the big whites) will still be released for a year or so. As said, these are clearing the pipeline during the transition to RF.

I think those who claim "hysteria" or "bias" against those of us who believe EF is now a legacy tech are actually arguing against a timeline, not a concept. Will the last EF lens be produced two years from now? Probably that is too soon. Five years from now? In my opinion, quite possibly. But, once again, EF lenses will be serviceable and worth buying after production officially ends because there will be many working EOS bodies circulating for many years beyond.

I think people who don't believe that RF will replace EF don't believe Canon has actually come up with something better, or that Canon would ever phase out something that has been around for 30 years even if RF is better for them and customers.

But I've also admitted in this thread that I might have overestimated the speed at which Canon is actually capable of making the transition, especially after reading the article with the general managers who claimed they simply didn't have better sensor tech or IBIS tech ready for the EOS R.

If calling my thought process "bias" makes you feel more comfortable during a time of exciting transition, that's ok. I will repeat my thanks to those posters here who have patiently explained why they believe EF lenses are still, generally, a good buy for quite some time.