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Messages - dolina

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61
Pricewatch Deals / Re: Lexar 64gb 1066x card on sale
« on: November 28, 2014, 04:28:41 AM »
Those look like affiliate links you have posted.

Anyway, I checked the B&H Photo site and you are right the 64GB 1066X is US$91 which is a good deal.

I have two or three of them already (and am very pleased with them) so no need for more, but thanks for the heads up and sure some will find it very useful.
Not as low as the deals last May. :(

62
I upgraded to 10.10.1 once it got out. I would have wanted to do so later but its the only way I could get the 7D Mark II Camera RAW update for iPhoto & Aperture.

63
Animal Kingdom / Re: Show your Bird Portraits
« on: November 19, 2014, 01:00:06 AM »
Awesome portrait! I am glad everyone on CR are level headed enough not to go all bat-S___ crazy over how intimate the portrait was.


fandf-15 by lozwilkes, on Flickr

At Feathers and Fur, a small experience centre near Reading, UK

Now THAT is a bird portrait!

64
EOS Bodies / Re: Canon 7D Mark II Owners first thoughts
« on: November 17, 2014, 01:41:26 AM »
Not a troll post so pls do not interpret it as such.

What do you not like about your 7D Mark II?

65
Lenses / Re: If only Canon made this lens
« on: November 16, 2014, 01:51:48 AM »
Here's a 500mm f/5.6 at http://www.adorama.com/KWTP556.html

Price: $3,355
Dimensions: 10.16 x 34.03 cm
Weight: 1.96 kg

66
Lenses / Re: If only Canon made this lens
« on: November 15, 2014, 05:52:00 PM »
You may want to re-title the subject to get more people to participate in the discussion.

Maybe so...
Whatever the reason, it is a lens I would like to own and stop me dreaming about 300 f2.8 /400 f4 with convertors and the /500 f4.
Incidently, i had the 100-400 but swapped it out for the non IS 400 f5.6 due to better IQ. Maybe the mk2 100-400 with 1.4x will be a sharp combination!
I would love to own one as well. Less than 2kg 500mm would be awesome walk around lens & be more useful to me than any 400mm f/5.6 lens.

67
Lenses / Re: If only Canon made this lens
« on: November 15, 2014, 05:26:48 PM »
You beat me to the above calcs.
As a user of astronomical refractors, the objective diameter usually determines the weight and volume.
However I'm not sure it's due to lack of demand but more a case of why sell one when you can sell two!! ;)
More like economics of scale. Any sort of manufacturing with such a high quality control targets have a very high fixed cost.

If the demand is not high enough to make more than one f-number at a given focal length then you are either sell one f-number per focal length (500mm, 600mm & 800mm) or no f-number (1200mm).

Ever wondered why Sony's $13,000 500mm f/4.0 is more expensive than Canon or Nikons 600mm f/4.0? Simply put there aren't enough Sony users, period.

68
Lenses / Re: If only Canon made this lens
« on: November 15, 2014, 05:11:47 PM »
I base the grouping on the diameter of the front element of the lens

Guestimate price of a modern 500mm f/5.6 IS

71.43mm
$2,200 100-400 f/4.5-5.6 IS II; 1.59kg
$2,300 70-200mm f/2.8 IS II

89.29mm (theoretical price & weight)
$4,000-5,000 500mm f/5.6 IS
1.59-1.94kg


95.24mm
$2,000 Sigma 150-600mm f5.0-6.3; 2.86kg

100mm
$6,000 200mm f/2.0 IS
$6,470 400mm f/4.0 DO IS; 1.94kg
$11,800 200-400mm f/4.0 IS

107.14mm
$6,600 300mm f/2.8 IS II

125mm
$9,500 500mm f/4.0 IS II; 3.19kg

Within context f/5.6 and smaller f-numbers are equated to lower price tags but the front element's diameter is a better indicator for pricing.

Now why does Canon make five lenses with a maximum focal length of 400mm and only one lens whose maximum focal length is 500mm, 600mm and 800mm?

Pretty much demand is not large enough for more than one f-number at these focal lengths.

I was also hoping for a 500mm f/5.6 as 400mm f/5.6 is largely useless in the Philippines for birds in the wild.

Now, the lens would sell for 1/2 of a 500mm f/4 IS II at below 2kg. As for height, length and depth I cannot really say.

Sigma on the other hand would be best in the position to offer such a lens at the price you are asking for.

In fact Sigma does make a 500mm f/4.5 without OS at $5,000 at 3.09kg.

69
Lenses / Re: EF 35mm f/1.4L II to Finally Come as Well? [CR2]
« on: November 14, 2014, 01:27:21 PM »
Since the 40mm pancake came out I had very little incentive to wanting/waiting for the 35/1.4 II.

Not that it should discourage anyone for waiting another 6 years or so for it.  ;D

Now, a 135/1.8 with IS is mighty interesting to me.

71
Lenses / Re: Introducing the Canon EF 100-400 f/4.5-5.6L IS II
« on: November 11, 2014, 10:20:51 AM »
Canon Hon Kong's video comparison between the v1 & v2

http://youtu.be/phutXDbmkyw

72
I hope the 5D Mark III successor will surpass the Sony's successor.

73
Lenses / Re: Did Canon Leak the EF 11-24mm f/4L?
« on: November 11, 2014, 08:25:42 AM »
Rumor is it'll cost $3,000 wide rectilinear zoom.

74
Lenses / Re: Introducing the Canon EF 100-400 f/4.5-5.6L IS II
« on: November 11, 2014, 12:03:23 AM »
Works with 1.4x & 2.0x Extenders / TCs





Official Tech Specs

Focal Length & Maximum Aperture   100-400mm 1:4.5-5.6
Lens Construction   21 elements in 16 groups
Diagonal Angle of View   24°-6°10'
Focus Adjustment   Inner focus system / USM
Closest Focusing Distance   3.2 ft. / 0.98m
Zoom System   Rotation Type
Filter Size   77mm
Max. Diameter x Length, Weight   Approx: 3.7" x 7.6" / 94 x 193mm
Approx: 3.46 lbs. / 1570g (lens only, including removable tripod mount)
3.62 lbs. / 1640g (lens + tripod mount)

75
Lenses / Re: Introducing the Canon EF 100-400 f/4.5-5.6L IS II
« on: November 10, 2014, 11:12:38 PM »

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