Tilt-Shift Lenses

tiger82 said:
I never considered using a 1.4TC with a TS-E. Do you think that, with the exception of losing 1 stop and some IQ, I can approximate a 24mm TS-E using a 17mm TS-E with a 1.4x TC? I do like the flexibility of using filters on a 24mm TS-E for outdoor work. I will have to decide after shooting the 24 and 45

I do often, the combo is still a very high quality lens. I need the 17 fov often enough for that to be my mainstay TS-E lens, but I am very happy with the output from the 17 and 1.4TC MkIII.
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The Digital Picture Reviews the Tamron 24-70

neuroanatomist said:
Ladislav said:
I got the lens back on Thursday (hey really made it within 3 day). I used FoCal on Friday to check AF calibration. It didn't need any AFMA change on wide end but it needed -13 on telephoto end! That a big disappointment. I gave both lens and camera body to service center and they returned me a "calibrated" lens which still needs -13 AFMA which I must do myself. At least this time the required value was within available range. This change increased quality of focus on "calibrated" lens (according to FoCal units) by 100%. My problem copy is not as sharp as Dustin's copy but it is now satisfying for my needs.

I'd try some FoCal testing at intermediate focal lengths. If AFMA is set to W = 0 and T = -13, the camera will do a simple linear regression to apply AFMA at intermediate focal lengths. So, for example when you're zoomed to 35mm, an AFMA of -3 will be applied, and at 50mm the AFMA will be -7. If those values are far off of what FoCal determines for those intermediate focal lengths, you might consider another try at service. Personally, my Canon 24-70/2.8L II needs W = 0 and T = 5, and the intermediate focal lengths fall right on the regression line. If that wasn't the case, I'd have exchanged the lens.

I'd also AFMA your Canon lens. It is always possible that the camera is off somewhat.

This is one of the issues a buyer faces with a 3rd party lens. Is it the lens, the camera body, or both. You can't send both to either manufacturer and ask them to make it right, no matter which has the issue.
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Technique on Aerial Photography

Well i have only started posting on this forum but have stalked for a while since i didnt have any good questions.
I am a commercial pilot and got asked to do a shoot of a commercial building and wondered if anyone else does this and what settings they go after.

For my shots i tried to go early in the morning to get some shadows. It ended up being a little later than i wanted when we finally got up and tried to keep my shutter around 1/2000.

5D III w/ 70-200 IS 2.8L II shot from about 1000 feet.

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17-40 f4 L discontinued???????

I would be happy to see a better 17-40/4 L, but not with IS at twice the price and much heavier...

The 17-40 has been the lens I use the most often, it is light, very good for the price: but I am afraid to see a replacement with a much higher price, a much heavier lens, and not * that * optically better... The current Canon pricing policy is not making me optimistic...
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New Canon 5D Mark III

Welcome to CR, and congratulations on a great camera, hope you have as much fun with yours as I do with mine.






V8Beast said:
Congrats on the new toy!

webphoto said:
Congratulations on your new camera. The 5D Mark III is the best DSRL today.

I love my MKIII as much as the next guy, but it's only the best DSLR today for people - like me :) - who can't afford a 1DX.

Don't be too sure. I am really lucky I have both and I think I probably use the 5D3 more. The 1Dx is fantastic and can do what the 5D3 can and more, except the number of pixels but either have plenty for me. BUT the 5D3 is a lot lighter and smaller that has its benefits. I bought the 5D3 after the 1Dx because I saw the improvement in IQ over the 7D and found I was never using the 7D that I had kept as a backup. The loss of the crop factor is completely offset by the better IQ and the improved focus accuracy, being FF etc etc all help. But its the IQ that gets me every time and there's not much wrong with the 5D3.
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Purchasing a used 135mm f/2

SwampYankee said:
This lens turns up on the Canon refurbishment site from time to time. Set up an alert on SlickDelas for when the Canon refurb site advertises. When they advertise they have almost everything in site or just keep checking back. By buying from Canon you know you have a lens that has been checked out by Canon and is perfectly clean. One usually turns up every month of so: http://shop.usa.canon.com/webapp/wcs/stores/servlet/subCategorySort_10051_10051_-1_22751_highPrice_list#

Good to know. I created an account and put it on my wish list. When it becomes available, will I get emailed directly from that list?
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Kenko teleconverter questions

spturtle said:
Yes I got that, and I assumed you used "Adjust by lens", so I wondered if (after removing the current setting) you could set the measured amount in "All by the same amount" and then add the teleconverter. And alternatively if you could set up "Adjust by lens" while the Kenko teleconverter is attached. But the latter will most likely crash the camera at some point so I'm not asking you to try this. I have kenko teleconverters so if I ever get another camera it will have AFMA and I can test it myself (my 600D doesn't do AFMA).

Hmm, interesting ideas. I might have time to experiment a bit with some of the combos you suggest, tomorrow. I did record all of my AFMA numbers for each lens, so there's no risk of losing them and having to retest. I'll let you know how it goes.
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Telezoom lens (70-300L vs 70-200 vs 100-400)- Advice

neuroanatomist said:
Just curious as to why you'd need a tripod ring for the 70-300L (and not the 70-200/4L?)...

I think Canon should have added it, esp. for this price ... I have got a China version which is very cheap and very sturdy (yes, both at the same time) since I figured out that shooting on tripod @300mm with the 70-300L doesn't work for longer exposure times w/o tripod ring.
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If the Japanese Yen is now low, why are Canon prices staying high?

Several good and reasonable reasons have been identified here. But one that hasn't been mentioned that also contributes to this is that Canon is a multinational company. Its costs cannot be limited to any one nation or one currency.

A falling Yen does not reduce the costs of its production facilities in other countries and it may actually increase some of its costs for materials and labor.

Another major consideration – Advertising makes up a huge percentage of a company's total costs. A falling Yen is not going to reduce the cost of advertising in National Geographic or any of the hundreds of publications that Canon advertises in. They have to pay for those ads in the local currency, so exchange rates, again, can hurt as much as help.

When talking about a company the size of Canon, there are just too many variables to presume that one thing (like the exchange rate of the Yen) will have a major impact on prices
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So, has anyone recorded externally hdmi from 5d3 firmware updates?

cayenne said:
LetTheRightLensIn said:
ML RAW gives MUCH better quality, have to blind AND not trying to not instantly see the difference. The Ninja 2 1.2.1 external recording stuff is a minor little difference that most times you have to reallllly look to notice and well a basic static shot and you'd be hard pressed to see much difference but with ML the difference leaps out at you.

Of course the Ninja 2 does record gobs of footage at once and is tres easy to handle and you don't need to do slow pr-processing step for every little minute clip (OTOH that slow pre-process also is done with full power of ACR and even ACR and PS so you can get things so good that you don't even need to process anything in PP or use any slow tools there which does greatly speed up final compression time in PP so you gain some time back there, it's just it is a bit nicer to have the slow stage later rather than earlier, but whatever).

But most people have been kinda hmm eh I mean I guess a little about the HDMI+Ninja 2 and like OMG!!!!!!!!!!! about the ML RAW.

Once ML works with 1.2.1 the Ninja would make a nice zebra/focus peaking monitor though over HDMI since, at least for now, the ML RAW hack tends to crap out earlier at times if you try to force it's focus peaking and zebras and fancy stuff to run full force at the same time as the ML RAW is going.

If you do run 1.2.1 over HDMI I think the Atmos Ninja 2 type stuff is the way to go over the Black Magic for various reasons.

But man that ML RAW is just wow!

I wonder if they will find a way to feed the HDMI out with a less mangled signal. It would have to be 10bits at most and probably 8bits since I bet Canon didn't use HDMI 1.3 although who knows 1.3 is ubiquitous these days. It seems criminal that it took Canon six months to get the same crappy singnal out of HDMI and ML gives us this RAW stuff in three weeks. Perhaps the digic chip just utterly sucks at debayer and processing (in cam jpgs were never nearly as crips as RAW, but then again they do seem much better than the video stuff so....) and maybe that is why they say they do not use digic in C300 but use older video cam chips for processing?? (but still the in cam jpgs are better than the video they get out of it so....)

That said they did slightly tweak the video for 1.2.1 so whether hmdi or internal it does produce a bit better signal than it does with the older firmware. (which also reminds me DO NOT compare 1.2.1 HDMI Ninja 2 footage to pre-1.2.1 internally recorded footage since that footage is worse than the new internal footage quality).

I gotta think the Ninja and other external HDMI recorders out there, expecting the 5D3 market to open up to them are just hating life right now, with the new ML Raw stuff coming out...that is so far, exclusively CF based.

There goes a market for them unless the ML people can somehow put this stuff out of HDMI, which by the numbers, doesn't look hopeful.

C

There will still be those who need the easier workflow, but yeah, they may be the biggest losers out of it all.
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Any risk of 1DC overheating on a 1 hour 4K video?

Time for an update!

The reason why Canon still hasn't publicly announce the 25p firmware for 1D C is that they found a serious defect in the initial release (version 1.1.9 in early May), their official word is "image tearing can sometimes occur during recording". So they stopped updating cameras with this version and delayed the announcement to end-of-May (as of writing). Currently they are still working on revised version and further delay could be possible.

1D C owners, please be patient :)
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How do you determine the focal length you use most often?

neuroanatomist said:
Doesn't apply to you, but I use Aperture, and a little app called Aperture Inspector to pull all sorts of stats from my libraries.

Is Aperture Inspector a plug in for Aperture? Would you mind telling me how to get it?

As always, your knowledge and insight to all of this makes this forum great. Thanks!



EDIT: link was already provided in the thread! :)
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the rebate program... what a sham!

Some corrections needed from me. I had stated that bodies had gone up by $100 the other day but, with the exception of the non-kit 6D, they were raised by $200 in one fell swoop. And although the earlier report about refurb stock at Canon Price Watch was accurate, I must have caught them in an update period that morning. Stock across refurbs is low but apparently not to the level I indicated. My apologies. With the dollar up against the yen by 30+%, due to a concerted effort by the Japanese government since last fall, you would think there would be a certain amount of price flexibility in the downward direction instead of up. However, such times are prime time for padding the margin before price competition restarts. The ~6% price rise this week added to that yen change is a 36-40% price movement, a price increase if you will (I have chosen not to start the comparison with the low price points prior to the "rebate"). Nice work if you can get it. It should be remembered though that up till last October Canon, like other Japanese manufacturers, suffered some from the exchange rate. Still, this aggressive, planned move of their currency is not a flash in the pan, it is a long term policy that I expect to see maintained as they try to get their moribund economy back running again. It remains to be seen if Canon's (and others) pricing will reflect that or if our demand will allow them to charge these newer prices. It's not going our way folks, good time to wait and watch.
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5D3 BEST SOUND?

A few options:

Seperate recorder: tascam DR100, Zoom H4n etc. Another device to charge, hit record on, files to synch.

Interface device: juiced link or beachtek, adds XLR connects to your cam, some are powered (phantom) some are passive. I currently use a beachtek DSLR-5Da. I have a DXA-4 (very basic passive XLR interface with line / mic. mono stereo switching and level dials) for sale just now. This is a good match for the 5D3 as you can monitor from the camera. Your mic would need it's own power source (such as a K6 module) These generally sit underneath the camera, so are better if you don't want a big massive rig.

New Tascan DR-60D.

a combination of both, an integrated recorder and interface. You can record internally to SD, but also pump a feed to your camera. Also sits on the camera. Has phantom. Looks like being the mutts nutts.

If you want to PM me I'll give you more details about the Beachtek DXA-4 I'm selling.
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