• The Canon Rumors Forum has officially been shut down as of July 10, 2026.

    All data will be deleted on September 16, 2026.

    the ad free experience will return by July 17, 2026.

*UPDATE* Canon EOS-1D X Firmware Update Addresses f/8 & Red AF Points in AI Servo

Re: *UPDATE* Canon EOS-1D X Firmware Update Addresses f/8 & Red AF Points in AI Servo

neuroanatomist said:
Richard Lane said:
I beleive they left off the 400mm f/2.8L IS becuse that lens could already focus on the 1DX with the 2X extender prior to the firmware update, because it's max. aperture is only f/5.6. :)

Except...they do list 300/2.8L IS, 300/2.8L IS II, and 400/2.8L IS, as well as a whole bunch of other f/2.8 primes and zooms, all of which could AF at f/5.6 with cross-type points prior to the v1.1.1 firmware. They also list a bunch of f/2.8 and f/4 lenses on the 1.4x list, and on that list, the 400/2.8L IS II is included. They just don't list the 400/2.8L IS II on the 2x list.

I was merely reassuring the posters concerns regarding support for the 400mm f/2.8 plus 2X combination, whether or not it was on the list.
Upvote 0

Why is there no 700mm?

untitled10 said:
That's because of the flange distance compared to focal length, 35mm is shorter than the 44mm flange distance and thus has to use a different lens type, but once you get over 200mm's or so then it just stays pretty much the same albeit larger, 700mm would be very slightly simpler than an 800 because you would need smaller fluorite elements to correct for chromatic aberration, that is the major problem with longer lenses and what makes all these so expensive, due to the Rn'D and expensive materials used to correct the difficult of a longer focal length.
Yeah, my guess based on size and weight is that 600mm was as far as they could go with f/4, where a 700mm f/4 would weight 15lbs+ and just be too big for people to reasonably use. And while a 700mm f/5.6 would probably be lighter, the 800mm is only 9.9lbs, so, most would probably go for the reach over saving a few bucks at that price range.

It's sort of in the same realm of why they don't offer a 1000mm or 1200mm lens (well, they do make a 1200mm, but, not for mortals). The return on investment isn't there, as it'd be too heavy, too expensive, and the alternatives with a 1.4x TC are just better. For example, the 1200mm f/5.6 they do make costs like $100k, which could buy you the entire EOS collection basically. Here is the 1200mm v the 800mm

Canon-EF-800mm-and-1200mm-Lens.jpg
Upvote 0

Lens and filter options for landscape photography

Just push the Info button - that cycles you through different screen display options in all modes (Live View, VF shooting, and Image Playback). You can get the electronic level on the main LCD in both Live View and VF shooting, as well as in the VF (using the AF points). I find it especially useful when shooting with lenses that have older tripod collars (the newer ones have detents at 90° increments, which is very useful).
Upvote 0

5D III Q-screen

The Q-screen on my 7D shows the selected AF area (ie all points, single point, zone AF, etc) which I find to be very useful. The 5D III Q-screen does not seem to have this, or I have not found a way to enable it. So on the 5D III the only way I can determine the current camera setting is to look through the VF and press the shutter button halfway.

I emailed Canon to suggest they include it in the next firmware update - although I received an acknowledgement of my email I did not get a direct response.

Anyone else think this would be useful? - if so it might help for more people to make the suggestion to Canon.

6D with 3 flavor + Improve AF (compare to 5dm2)

ishdakuteb said:
sb said:
... I think the purpose of servo is seriously misunderstood.

i am insteresting in your understanding about ai servo. as if you would like to share, i am your audiance...

note: i am using both (with dof button re-config), depending on cases

It is very obvious to me that servo focus should be used every time the distance between camera and subject is changing, even it it is by inches. And this applies to candid shots especially as generally there is movement. Thx.
Upvote 0

Is it acceptable that 1 out of 5 copies of the 24-70mm II are really great?

LetTheRightLensIn said:
The one I decided to keep in the end is amazing 70mm wide open center frame and pretty good at wide edges and corners (I think, it's hard to tell which is the way the DOF should be placed) although lower left corner might be a touch soft. Maybe 3 more copies and I'd get something perfect in every last regard?? As it is though, it's good enough to dump my 24 1.4 II over and it has the sharpest 70mm f/2.8 center frame I've seen from any lens, so not so bad (70mm far edges are weaker than my 70-300L on this and all the copies looked at though).

I also have the 24L II and tested it on a heavily detailed brick wall on a tripod with LV manual focus, contrast AF etc and my first copy of the 24-70L II is excellent, noticeably outresolving my 24L II from center to the edges at F2.8, F4.. i like the color more and the micro contrast is amazing! i love my 24L II but i'm ok with putting it up on craigslist.. i would also say the center to mid-frame at 70mm is the sharpest i've seen..
Upvote 0

I'm not impressed with my 70-200mm f/2.8L USM... so is it me or the lens?

IIIHobbs said:
jdramirez said:
I'm seriously considering selling both 70-200's and then get the 135. Does anyone mind not having is on the 135?

The extra stop of light should come in handy when i shoot my daughter playing basketball.

Hey JD, me again.

Love the 135 f2L for Basketball; it is far superior to the 70-200 IMO. But beware, it has a very shallow DOF also.

It could potentially be a little short for outdoor sport; I prefer 300mm there.

I thought I might be able to bring my flash (430exII) to the game, but I'm 99% confident my daughter would yell at me saying it was distracting. So... I'll need a body with solid iso performance and a big aperture. And as I've said before, I'm willing to sacrifice 60% of my shots if the 40% are SPECTACULAR.

As for outdoors, I think you are right, but it is only 67.5% less than the 70-200. So I should be able to crop in enough to make up for the difference. And I like to cherry pick shots, so I hang out around the goal line, so I'm only 10 yards away from the action (depending upon which direction the play goes.
Upvote 0

1dx, or d800e?

Mikael Risedal said:
bdunbar79 said:
I own both, 1DX and 5D3. Let me say this. At high ISO, say 12,800, I can still print 8 x 10's or better with very fine detail and no noise with the 1DX with minimal processing, whereras the 5D3 requires a lot more post processing. Also, the 1DX files can pull more shadow detail and highlight recovery. Despite having 3 less MP's, the prints are substantially better. My Nikon buddies who shoot sports, ie D4, say they wish they had a 1DX instead when they look at my RAW files and prints.

I have no experience with the D800/E.

Quite a MYTH you are spreading around, RAW measurements shows that the two cameras are similar at high iso
and as I wrote before, check the parameters time/f-stop and you maybe find difference in real iso.
Canon has improved the noise reduction in JPG and JPG out from the camera , there they are better today than Nikon
are in D4

Nope. Speaking from experience with the cameras, something YOU don't have.
Upvote 0

Want to start shooting professionally aNy suggestions?

KKCFamilyman said:
I have a 5d3 24-105, 70-200 2.8 is ii, 50mm 1.4. I want to start a photography business shooting family portraits at family outings or where ever they want to shoot. I like Candids and would love to go and capture those moments for families like first days at schools, parties, holidays, etc. just not sure how to get started and if I should do some free work to gain experience, etc. Any suggestions would be helpful.

If you're passionate, talented, and entrepreneurial, you'll find a way to make it work.

Otherwise, you'll join the graveyard with the other 99% of photographers who wanted to be a pro photographer (but for whom it didn't work out).
Upvote 0

How do you sell your gear?

neuroanatomist said:
dstppy said:
I don't think you can move region, only remove and repost on CL, right?

No, you cannot move a post. But why remove? Just post on more than one board. Normally, the buyer travels to the seller, but if you post in a board that's a distance from you, be prepared for some push back from a buyer on travel, which is reasonable. Someone from New Hampshire posted an ad on the Boston board, and agreed to drive down to Boston (where I am) to make the sale.

I live 4 miles from the border of the other region :) I ended up removing/readding two as a trial. Their site said don't post in multiple regions, so I figured I'd play by the rules :D

I haven't had any more nibbles, so I'm going to probably switch strategies and put up firm prices instead of 'what everyone asks for' and wait for them to try and negotiate.
Upvote 0

Shuttle Endeavour's 26th Mission

stefsan said:
Very cool shots, congrats! I like the first one and the one with the wing almost knocking down the street sign best.

It's a blody shame though that they retired the shuttles – they are probably the most awesome machines mankind has ever built.

Thanks. It's the end of an era. The shuttle is a very long way from when the first humans started using stick tools. We are now ready for the next generation of transporters.

I visited your Flickr stream, you've got very cool images yourself, congrats!
Upvote 0

Is it possible to radio trigger 580EXII with ST-E3?

Jakontil said:
thanks that means no choice but to move to canon's system right now... dang!

I wish I could, well...I might for outdoor use, I've already got one 600EX-RT. But indoors I also need to trigger a monolight, and the Canon system doesn't help there. :( I'm still hoping for a Canon -RT receiver that can trigger an older Canon flash or a monolight. I do expect we'll see one...but not until after a 430EX II replacement with radio slave capability is released, and sales of that slow down.
Upvote 0

Canon G1x or Sony RX100 for vacation and light duty

verysimplejason said:
KKCFamilyman said:
Thanks I ended up with the Sony nex f3. It's fast and came with 18-55 and 55-210 combo for $899. Even included an extra battery. I know it's not pocketable but takes decent pics and the wife will use it which is the most important.

You could also opted for an EOS-M. That way, you can "share" lenses. :)

That is what I think I M going to do. Just waiting to see how people respond.
Upvote 0

Comparing 6D with 5D3

neuroanatomist said:
Sharper100 said:
AF Center Point: -3 vs. –2 EV = 6D is 33% more sensitive in low light

EV, like stops, is log2. So, not 33% more sensitive, the 6D works in half as much light.

But of the two, I'd still pick the 5DIII.

I finally pulled the trigger and got the 5DIII. The AF system is truly amazing, and capable. I am glad that I made that choice. I must admit that Neuro's comment had an impact, as I find his knowledgable comments very informative.

The price was a bit above my original budget, but I feel that I got my money's worth. It is an amazing camera...... :)
Upvote 0

Estimates on backorder times?

wiggles said:
That's what I was worried about. Here's what I'm looking at used-wise. Am I crazy, or does this look like a decent used lens?

http://www.ebay.com/itm/200831768761?_trksid=p5197.c0.m619
I'd stay far away from used ones. The lens is well known for being easy to knock out of alignment, even by those who are pretty careful. Most users do not have the equipment or the knowledge of what to look for.
If you must buy a used one, get it from Lens Rentals. They test them for sharpness and issues before selling them, so you are going to get a good one as long as there is no damage in shipping.
They seem to be out for now, but you might email Roger and ask.
Upvote 0

Recommend me a m42->EF adapter

Mt Spokane Photography said:
Drizzt321 said:
The guy had a spare 'dump' adapter which works great. Since it's a Macro lens (55mm f/2. 8) , I probably won't really care about the AF confirm unless I'm actually shooting someone. Oh, and it came with an m42 bellows as well :) Too bad it'll have to wait for a couple of weekends before I'll have time to start really playing with Macro.
That sounds good. Just because 99 of 100 of the cheap chips work fine, does not mean its worth risking a $500 repair bill to save $20.
Its like the guys who got third party Li-on batteries and they did not catch fire. Therefore, everyone is safe from buying them. Tell that to the guys who died on the 747 brought down by Li-on batteries on fire.

Err...I meant dumb, not dump. But yea, either I'll stick with the dumb one, or find a quality one.
Upvote 0

Filter

Forum statistics

Threads
37,480
Messages
975,426
Members
24,816
Latest member
GLBDD

Gallery statistics

Categories
1
Albums
29
Uploaded media
372
Embedded media
1
Comments
25
Disk usage
1 GB