It has been a recurring issue on my 70D. Most times, I've caught on before anything happened. Clues might be the aperture displaying F0 or lens would suddenly stop AF. A few weeks ago I dropped my 24-105 because of this. I also suspect it has something to do with the combination of zoom ring position on the 24-105 and release button tension/position.

I've found that the most likely hand position to trigger an accidental release is when holding the camera vertically pointing downwards, say when taking an overhead shot. Depending on how one holds the lens barrel, one may be inadvertently supporting the weight of the rig by touching the release button. Twisting the zoom ring in this position is what potentially could cause an accidental lens release.

Probably illustrates why it is best not to base a purchase decision on a single review - have to read several, plus (if possible) handle the camera yourself for a bit before deciding

Also forgot to add those pics of dock were taken using Tamron 90mm VC and compared to Canon's 100mm L that lens felt a little better in terms of focus speed and assertiveness to lock on target in dimly lit situations.

Meanwhile I bought the Milvus 85mm f1.4. The Canon cashback for the 85mm f1.2 expired 2 days before I had the budget to buy the lens.


The Milvus is great. Manual focusing needs a bit of training but it works.


Who ever is interested in the photographic outcome? I compared it with my Sigma:


http://bit.ly/1U2oCnp
[/size]

raptor3x said:

R1-7D said:

See! Just how could a $600 phone screen beat a $6000 camera's screen? Ridiculous. I trust Tony. He tells it like it is. How could Nikon and Canon let this happen?

Tony FTW!

Click to expand...

I'm not sure if the S7 has a better screen than the S6, or the 1DXii has a worse screen than the 1DX, but my 1DX screen is much easier to view in direct sunlight than my S6.

Click to expand...

Bullocks. You purposely took that photo with bad lighting on the phone compared to the camera's screen. Tony is right -- these cameras at these price points should have at least 5 inch displays with full touch functionality. Why would users want anything buy a large display these days on pro bodies?

Also, did you see in the review how both the Canon 1DX2 and Nikon D5 memory card doors are spring loaded?! Pfft. Again, lack of innovation and these giant companies are just copying off each other.

In reply to ajfotofilmagem's remark : nor AlanF nor I said otherwise.

But since you bring up the subject of noise: the better the DR of a camera, the less noise there is in the final image after post-processing.

For instance when pushing the shades in a photo of an airplane in bright sunlight, when the underside of the wings and fuselage are underexposed (in bright sunlight that usually is a fair amount of underexposure). This is the situation where everything about the 7D Mark II excels .... except for the DR of its sensor.

and the "fabulous" Memory Stick! ;D
And now XQD ...

As much as I dislike Sony's continually obsoleting their products and dropping support, this is a area where you can purchase a third party lens and expect it to work, because Sony gives free licenses for their lens operating system. They did it to quickly build lens support for their cameras. You can use a Sigma, Tamron, Zeiss, and soon, a Rokinon that have the proper firmware to work with a Sony camera.

For macro use, you can't go wrong with any of the Macro lenses. IS can make hand holding them easier, but at 1:1, some sort of support is needed, even if its just bracing yourself well.

Zeidora said:

scyrene said:

old-pr-pix said:

Olympus OMD-E-M1 was mentioned earlier in the thread. What could make sense for Canon would be to mimic some of the software features that Olympus has added to both OMD and their high end P&S "Tough" series cameras. Olympus provides ability to select focus stacking in camera. Not as flexible as 3rd party stackers or as good as computer controlled rail moving the body, but very handy in a lot of situations. Select near and far focus points and specify how fine the increment (# in stack), camera does the rest. Seems to be a great way to get people interested and produces much better results than just stopping down way too far. E-M1 actually creates the resulting stacked image in camera as a jpg (limited stack size) or you can output the collection of images in the stack to process outside the camera.

Click to expand...

Automated focus stacking is very handy - I've used the HeliconRemote software - but alas it only works with lenses that AF. The crowning jewel of Canon's macro hardware is the MP-E, which is MF only, so in-camera automated focus stacking would not be possible. You'd need a (motorised) focus rail for that.

Click to expand...

Alternative for MF lenses is to move the sensor back and forth. That was done back in film days by the Contax AX body. The "AF" was very slow, but it added limited AF to Zeiss lenses. However, it also made the body very thick. It also acted as a built-in extension tube, which was cool. I very much doubt that this will come back, though.

Click to expand...

I thought about that, but they couldn't move the sensor enough, surely? Not without changing the camera body design too much, and even then... Impractical to say the least!

got 15-30 lens back..
all functions with 5d3 and 1dx2 (just..live view issue on 1dx2) work fine now..
I had a few clicks in microadjust.. but it seems zeroed out.. maybe part of a new set of codes...
doesnt seem to need adjustment... but I will obsess further....


also maybe they adjusted the lens slightly ...i.e. checked the far/near focus tracking..

anyway..
it is wonderful...
very sharp lens.. very useful.. a slight annoyance for the reverse engineering world it lives in...
but a very good value.. for a unique product...
AND
the tamron folks were very nice..
then they shipped fedEx overnight BACK to me...

no BS or handwaving from the repair station..
they just needed the codes from japan.. everyone being careful with their customer...
......at least that's what I felt...

I will keep this lens....
makes me curious about the 85 1.8 stabilized lens....
some say it is fantastic....

we are lucky to have such fun toys ...for work and play..

just a last report on what transpired..
thanks for input...all...

Tom Schmid

Cannon is no doubt one of the best cameras in the world. And the new camera that is going to be released has many new embedded features in it. And at the same time it is also essential to have the latest updates that are happening around you. In order to stay updated with the latest electronic device, you keep yourself updated from http://www.gizmobeat.info

dilbert said:

rcarca said:

dilbert said:

Gear for London...

- umbrella
- boots
- water proof jacket
- water proof pants
- water proof enclosure for the camera (if you are photographing outside)

Oh, make sure your girlfriend has a big enough umbrella that you can stand under hers whilst you do your thing with the camera.

Click to expand...

If you want to look a total dork...

Click to expand...

Depends if you want to stay dry or not ... afterall, this is London that is being discussed, not Las Vegas.

Click to expand...

You obviously have not read the comments about rainfall further up this thread! The numbers of days I actually need an umbrella in London is very few...

ahsanford said:

Get your bokeh on:

http://www.photozone.de/canon_eos_ff/978-laowa105f2stf

I can't wait to use this on my 5D3 with the manual focusing screen, it's going to be gr--.

Oh. :-[

- A

Click to expand...

Yes you'll have to wait for the 5DIV : my money's on it having a manual screen option. ( And the 6DII not).

FYI -- Tamron is now also getting pinched by '1DX2 doesn't love all lenses-gate':

http://www.the-digital-picture.com/News/News-Post.aspx?News=18341

- A

lol, took out the mirror... I spent most of my day today watching my subject through the viewfinder, the camera sleeps while I watch, now and then I wake it and IS kicks in, I may fire off a few snaps, I wonder what my head would feel like after such a day looking at a EVF, thank god the mirror lives for a while longer.

East Wind Photography said:

Photo282 said:

What I found with the 1DXii bottom right hand corner problem is that when I viewed the raw files with Windows 7, FastStone Image Viewer there was no problem in the bottom right hand corner. When viewed/edit with Adobe Camera Raw 9.5.1 the problem is there. The problem is there with Lightroom Cc 2015.5.1 64 bit version. When you view the file with Canon DPP ver 4 the problems NOT there. When you edit with Canon DDP ver 4 the problem IS there.

Click to expand...

You are likely viewing the embedded jpg within the raw file. I ran into that studying another issue.

Click to expand...

Thanks, learnt something new today. That makes sense on what I'm seeing. Always thought that Lightroom made the JPegs when importing into library. This information, you brought to light, ties into why other raw viewering software works.

neuroanatomist said:

AvTvM said:

neuroanatomist said:

...
By the time my kids get married, Nikon and Canon will have long gone bankrupt ...

Click to expand...

unless they have moved to making hi-rez hi-ISO surveillance cameras which will be so ubiquitous, that you don't need to hire any image makers any longer to get a wedding fully covered on stills and moving images from every possible angle. ;D

Click to expand...

Might be true now, only us civilians can't access the footage.

Click to expand...

Sure we can, just gotta sneak a USB stick into the Secretary of State's house.

I upgraded to the 6D from the 7D (1). That jump was huge in image quality. AF not so much. I almost never use NR unless I get higher than 6400. Looking forward to seeing what th 6Dii offers. The 5D's have $1500 more "stuff" than I need.

nvsravank said:

I have been using it with the 85L and single shot AF with face detection is good. Some missed shots as I am taking pictures of a 3 year old. AI servo was better. Not one missed focus. All shot at f1.2.
So happy camper here.

Click to expand...

So Close and yet so far.

Got my brand spanking new 1DXII but it can't access any of my CF cards and won't let me format them. It won't accept a formatted card from my computer or 5DIII.

What a buzz kill.

Any suggestions? I am waiting for support from Canon.

Thanks.

sek

When supports are not allowed, attach a light nylon rope with a weight on the far end to the tripod socket.
To use it, stand on the rope such that you are pulling up on the camera, tensioning the rope.

R1-7D said:

dilbert said:

Orangutan said:

...
I think there is an underlying consistency: I think he (and others) simply believe that Canon is acting dishonestly. The reasoning goes something like this:

If Canon "has" the tech for better DR, why don't they put it in? It can only be to use their position to manipulate the market and soak more money from their customers. If Canon doesn't "have" the tech, then they're lying to us about how innovative they are, and they're just stringing-along their customers to keep them hooked on Canon gear until they can "get" the tech. Because if people found out that they had nothing, NOTHING!!, all their customers would flee and they'd collapse in flames. In either case, Canon is being dishonest. But what about Nikon? Well, Nikon has proved they're honest by putting the best sensors in their products, even at the low-end; so if the D5 drops off a bit then that was an honest choice based on need, rather than a manipulative choice based on greed.

Many of the DRummers ascribe human emotion to corporations, when there's nothing personal or emotional about it: they're just trying to generate profit for their shareholders and bonuses for the execs. That's just how business works.

Click to expand...

Oh, I don't think Canon is being dishonest, I simply believe they don't (or at least didn't at the time) have the technology developed.

What appears to have happened is that Canon essentially stopped funding R&D into building better sensors for DSLRs. Now it may be that Canon were stuck with some engineering problems that took longer than others to resolve to move forward but my suspicion is that Canon decided that what they had was "good enough" for them to generate sales with and diverted money elsewhere. As you rightly put it, this would have let them save money on sensor R&D to generate better profit.

Click to expand...

All companies do this. Apple, you could argue, is the worst offender. They've just bumped their phones up to 2GB of RAM because up until just recently 1 GB was 'good enough'.

Click to expand...

I'd argue that companies which put 'good enough' into their product are best serving a wide customer base. More than enough adds cost with questionable value.

It's up to both the vendor and the consumer to determine what 'good enough' is and what a reasonable price is. When those determinations align, thumbs up.

Woody said:

Presently, I cannot think of devices that can produce the same image quality as large scale sensors. If, however, digital software manipulation in cell phones is able to produce the same effect (high ISO, bokeh and speed), then, yes, I agree the age of Canikon is over.

Click to expand...

It's only a matter of time before Apple starts using clustered sensors, the first dual sensor prototypes are already in the rumor mill. Cellphone IQ is going to keep going up.
The 1DX has nothing to worry about but Rebels are going to become more and more questionable as time goes by.
I still suspect that the eventual release of a Full Frame Rebel isn't out of the question.

I'm actually still kind of shocked that Canon doesn't have an Android phone. It's an open platform and they're excellent hardware manufacturers, it would probably take them all of a week to come up with something that takes phone calls and has a great camera. Not to mention the option of getting stock Android is a luxury right now, the less they mess with it the better.
At the very least they need to sell something as an accessory. The DxO One is probably on the right track, their implementation is just horrible, that thing does not look vacation friendly at all.

Canon just needs to make a hard case for the iPhone with a big juicy battery and nice camera built in. Maybe give it some expansion memory and an extra port.
Heck, if anyone would make an iPhone case with a big battery and expandable memory it would sell like hotcakes.
That or something super tiny but still better quality than the camera on your phone, if you can give people a camera that's even more convenient than digging your phone out of your pocket, that would sell.
People will pay for a better camera, but it needs to complement their existing device.

john1970 said:

So far I have three menu tabs in my My Menu Settings:

1) General Camera Settings: Format Card, Battery Info, ISO Settings, Continuous Shooting Speed, Lens Drive when AF impossible
2) AF: Tracking Sensitivity, Accel/Decel tracking, AF pt auto switching, AI servo 1st image priority, AI Servo 2nd image priority, AF method,
3) Movie: Movie Servo AF Speed, Movie Servo AF, Movie rec quality, Movie Servo AF track sensitivity
Sound recording.

Good luck,

John

Click to expand...

I have something similar on the 1st two tabs though have frames in HDR on the first tab. I don't shot video so the third dab is GPS, mirror lockup, .. Once I get my setup finish I'll share my thoughts.

ritholtz said:

Sharlin said:

JohanCruyff said:

One question:

If Canon's Low-ISO Dynamic Ranges [totally or almost] catches up with Sony's one, will we all be able to complain ONLY about the presence of the AA-filter on most Canon cameras?

Click to expand...

Oh, low-ISO DR is sooo last year. Given the D5's definitely non-ISO-invariant DR results, now it's again fashionable to complain about high ISO performance instead!

Click to expand...

Wondering how dxomark going to score 80d. Probably 80d might have better DR than D5.. If it is true, it is going to be funny when someone starts a thread telling how Canon 80d is better than D5 based on DXOmark numbers.

Click to expand...

I suspect DxO gives a lot of weightage to color depth, which in Canon sensors is still is behind Sonikon... so DxO will be more than happy not to tweak their algorithm to keep the 80D behind. ;D