August 23, 2014, 07:56:54 AM

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Messages - AlanF

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31
Business of Photography/Videography / Re: Who owns the photo?
« on: August 07, 2014, 09:36:26 PM »
Yes, you are correct. Copyright does not have to be applied for. It belongs to the photographer, unless he is working under contract and it belongs to his employers. If two or more people are involved in taking the photo, the copyright belongs to all of them. In the case of the monkey, the owner of the photo has no claim to copyright as he did not make any intellectual contribution to the taking of the photo or its composition. The argument that he provided the equipment does not make any difference to ownership of copyright, legally and also logically - you might as well as argue that the photo could not have been taken without the manufacturer of the equipment - the lens, the sensor etc.

32
For a 70-300mmL at 300mm with a Kenko 1.4X TC, its possible that your 6D will be manual focus only.

I just went on a photo safari in Tanzania with Canon 6D, 70-300L and the Kenko 1.4X. No problems with auto-focus. (mostly stationary targets - elephants don't move that quickly  :D )

Before going I had thought about the Tamron 150-600 but I bought the 70-300L instead. But in Serengeti I could have used the extra reach.

I also brought the SX50 HS and found it a nice little camera- https://www.flickr.com/photos/larshaupthansen/14632565988/

The Kenko froze my 5DIII, as it did several for several of us. It turned out that it worked only when the AFMA was set to 0. Was your 6D calibrated for AFMA or was it left at zero?

The SX50 is very good for static subjects. The 100-400L or Tamron 150-600 are both great safari lenses.

33
I use TCs all the time on my very sharp telephotos, and I used a 1.4 on the 70-200 f/4 happily. However, IMHO, it's not worth using them on f/5.6 zooms because the loss of IQ and the deterioration of autofocus aren't worth the increase in focal length, though some claim to have success with a 1.4 on the 100-400mm, which I never did.

34
Animal Kingdom / Re: Show your Bird Portraits
« on: August 06, 2014, 08:52:48 AM »
I took about 70 shots of a Red tailed hawk, a luck find, at various focal lengths of the 150-600, all of which were in excellent focus. Here, the hawk is threatening to gouge the front lens of anyone who says he isn't sharp.

35
Animal Kingdom / Re: Show your Bird Portraits
« on: August 06, 2014, 08:06:56 AM »
Tamron150-600mm woes - what the Fenway Park Cormorant thinks.

Had just a few minutes to spare in Boston en route to Halifax Nova Scotia so popped down to Fenway Park to check the whingeing in the thread about Tamron 150-600mm requiring AFMA and AF problems. Fortunately, I came across a cormorant who enlightened. First, he listened, then he burst out laughing, and then he turned his back to show what he thought about compaints about the Tamron 150-600, which was protruding from my 5DIII.

36
Lenses / Re: Tamron 150 600 woes
« on: August 04, 2014, 10:00:42 AM »
I tried one, and the AF was dismal on both of my 7D bodies, weather in IA-servo, or One-Shot.

"Hit & miss'--Mostly miss!    Maybe I got a "bad" copy--Sent it back.

Leigh

Focussing of my 300mm f/2.8 II + 2xTCIII on my 7D was dismal (slow and inconsistent), which was the reason I sold it for a 70D, which focusses brilliantly with the Canon combo and and with the Tamron 150-600mm. Blame the camera and not the lens. Many of us have found this.

37
Canon General / Re: Battery Overheat
« on: August 04, 2014, 07:09:47 AM »
Has anyone actually had problems with a battery, Canon or generic, overheating?

38
Lenses / Re: Tamron 150 600 woes
« on: August 03, 2014, 06:41:20 AM »
Both the Tamron 150-600mm and the Canon 100-400mm L are much better on FF than crop - see for example
http://www.dxomark.com/Reviews/Tamron-150-600mm-f5-6.3-Di-VC-USD-Canon-mount-lens-review-New-contender/Tamron-150-600mm-f5-6.3-Di-VC-USD-vs.-Sigma-150-500mm-f5-6.3-APO-DG-OS-HSM-vs.-Canon-EF100-400mm-f4.5-5.6L-IS-mounted-Canon-EOS-5D-Mk-III-Good-overall-IQ

And look how much worse the 100-400L is on the 60D.

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=113&Camera=453&Sample=0&FLI=7&API=0&LensComp=113&CameraComp=736&SampleComp=0&FLIComp=7&APIComp=0

Like the OP I have a 5DIII and I use the Tamron on that only - I wouldn't want to use the Tamron on a 60D if I had one (and I don't use it on the 70D).


39
Lenses / Re: Tamron 150 600 woes
« on: August 02, 2014, 10:39:00 PM »
 Mine on the 5DIII is +3 at 150mm and -7 at 600mm. On the 70D it is 0 at 600mm. It beats me why you sent it back for -6 and +5. I have worse results for expensive Canon primes.

40
Pricewatch Deals / Re: Friday Deals: EF 24-105 f/4L IS & EOS 7D Body
« on: August 02, 2014, 12:37:42 PM »
It alludes to a white box inside a Canon exterior when the item was included as part of a kit and then is resold separately. I have just ordered an EOS M 22 mm plus EF adapter at a tiny fraction of the normal price. They will probably arrive in bubble wrap rather than white boxes. 

41
EOS-M / Re: The firesale begins... EOS M in UK £199
« on: July 31, 2014, 08:20:07 AM »
It's so funny - the thread is clearly being tracked for ads (especially as I searched Amazon for the EOS-M) and one has now appeared at the bottom of the page for me advertising the EOS-M for £249!

42
EOS-M / Re: The firesale begins... EOS M in UK £199
« on: July 31, 2014, 05:50:24 AM »
Thanks for the heads up. Couldn't resist it and have just reserved one at our local store. There is even a £10 voucher with it for your next purchase so I have reserved an SD card! The Argos price, with voucher, is £10 cheaper than the EF-M lens alone from Wex for the whole camera plus lens. Oh well, a great EOS M2 will no doibt be out tomorrow, but I wouldn't have bought a higher price one anyway.

43
Finally packing to go to Boston then Halifax next week. I was given helpful advice of places for bird photography and nature in http://www.canonrumors.com/forum/index.php?topic=19255.msg360984#msg360984

Any updates, more help and advice of where to go would be much appreciated.

I don't know whether to take my 300mm f/2.8 II plus extenders or settle on the Tamron 150-600mm for lightness and versatility at the expense of IQ at 600mm. What a terrible dilemma!

44
PowerShot / Re: Canon Announces the PowerShot SX520 HS & SX400 HS
« on: July 29, 2014, 01:35:40 PM »
The pricing for the SX520 seems over priced compared to the competition.  The Panasonic FZ70 has a 20-1200mm f2.8-f5.9 lens vs the SX520 with 24-1000mm f3.4-6.0.  The FZ70 also comes with an EVF and 1080p60 video, both of which are missing on the SX520.  The FZ70 came out at the same list price as the SX520 although you can get it for less than $300 now. 

Both of these models seem like they are too little and too late to market.  This doesn't bode well for the SX60.

Even the SX50 outperforms FZ70 continuous AF.  Why won't it bode well for SX60?  SX50 is even sharper.

http://www.cameralabs.com/reviews/Panasonic_Lumix_DMC_FZ70_FZ72/outdoor_resolution.shtml

Even in the noise department, your FZ70 pales in comparison.

http://www.cameralabs.com/reviews/Panasonic_Lumix_DMC_FZ70_FZ72/RAW_noise.shtml

That was no contest: the SX50 murdered the opposition in noise and sharpness! Thanks for the links.

45
Lenses / Re: Selling my two Zeiss lenses. Your advice?
« on: July 27, 2014, 05:11:34 AM »
Zeiss lenses are typical Veblen goods http://en.wikipedia.org/wiki/Veblen_good The higher the price, the more difficult they are to use, and in general the more esoteric they are, the more some people will love them.

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