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Messages - CR Backup Admin

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676
Lenses / Re: Lens Price Increases Taking Affect
« on: February 14, 2011, 11:15:49 AM »
Prices go up amd up.  Own a L lens for 5 years, and as long as it is a popular one still inproduction, you can likely sell it for what you orginally paid. 

Its not free, but it is different from a body which will decline in price a large amount over five years.

677
Lenses / Re: Too Many Lens Rumours
« on: February 13, 2011, 10:43:05 PM »
Break down the Nikon lenses by type.  The Canon lens production quantities are only EF Autofocus lenses which are equivalent to Canon "G" lenses, while you are including every 35mm lens Nikon has ever made including those with manual focus only which are mostly incompatible with modern Nikon Cameras.

Well, those figures are OFFICIAL milestone numbers released by Nikon and Canon themselves. I cannot break down the fine details... you'll have to ask Nikon themselves. :)

The point is, comparing apples and oranges doesn't help.  Its like comparing company a which sold 50 million AA batteries while company b sold 50 million batteries total, the information is misleading.

678
Lenses / Re: Opinions on the EF 28-300L
« on: February 13, 2011, 12:23:47 PM »
Like you said, very big and heavy.  People usually are looking for something convenient to carry for travel.  It was said to be targeted at photo journalists, where they may need a long zoom or a wide angle very quickly.  It might also make them a target at protests, where one side or the other will think the press is against them.

It might also tell a thief that here is a person who has valuable equipment.

In some countries, they do not let you take professional cameras into events without a press permit, while they ignore consumer cameras.

So, I'd rather not walk around with one in Kuwait where photographing a person without permission can bring you a fine, or even looking like you might do something they don't like could bring down the law on you.

679
Lenses / Re: Too Many Lens Rumours
« on: February 13, 2011, 12:16:12 PM »
Yes, a favorite rumor subject for several years have been replacement of the 100-400mm L, the 400mm f/5.6L, and 24-70mm L.  Anyone who makes decisions based on rumors would have been waiting 5 years or more by now, and imagine if they has sold their old lens!

Just read the rumors and have fun, but don't take it too seriously. 

Nikon appears to let rumors be leaked, while Canon does not even lets many of its higher execitives know what is coming unless, of course, they need the information. 

Sigma announces products often a year or more in advance of availability, and sometimes we never see the product.  I'd prefer having a product announced only when its ready for delivery, or within 2 months max, but marketing types sometimes have a different philosophy.

680
Lenses / Re: Too Many Lens Rumours
« on: February 13, 2011, 11:50:29 AM »
Canon had a big lead on Nikon for lenses up until the last 24 months or so. Nikon really addressed their prime weaknesses. Canon has struck back with some innovative design like the 8-15 and 200-400 1.4x.

Canon needs an ultrawide zoom lens that rivals the 14-24 f/2.8. They also need a cheap, good, fast, USM prime lens in the standard range for APS-C shooters (like the Nikon 35 f/1.8 ). The rest... I don't care.

Regarding lens milestones:
Canon milestones: 30 million in Jan 2006, 40 million in Apr 2008, 50 million in Jan 2010, 60 million in Feb 2011

Nikon milestones: 30 million in Nov 2001, 40 million in July 2007, 50 million in Sep 2009. 55 million in Sep 2010

So, in the 2010 period, Canon sold ~ 10 million lenses while Nikon sold ~ 5 million.

Break down the Nikon lenses by type.  The Canon lens production quantities are only EF Autofocus lenses which are equivalent to Canon "G" lenses, while you are including every 35mm lens Nikon has ever made including those with manual focus only which are mostly incompatible with modern Nikon Cameras.

681
EOS Bodies / Re: T3 Sensor - question...
« on: February 13, 2011, 11:45:03 AM »

Digic's don't contain "software algorithms". That is in the firmware.  Ignoring for a minute that software doesn't live in hardware.  Amplification is not handled by the Digic either, it's handled by the onboard pixel level signal amps.  Digic are ARM core based (I believe) processors with SIMD functionality.  Digic's are just basic logic cores to control the machine coupled with some simd/matrix multiplication support circuitry.  I would *strongly* suggest you research what ASICs are, and the functionality they general contain before you make any more statements about what the Digic does or does not do.

Although Digic 4 is a processor system, and firmware is in a separate memory chip, the net result is more speed and the ability to process more complex algorithms, and thus improve images over Digic III.

Its just a matter of nitpicking the wording that is in Canon's white paper quoted below, a person does not need to be a engineer and research ASIC's and firmware to know that cameras with Digic 4 produce images with less noise.

From Canon.

DIGIC 4
The DIGIC 4 processor first appeared in the EOS 50D camera launched in Autumn 2008 and is also featured in the EOS 5D Mark II. Compared to DIGIC III and the previous incarnations of DIGIC, the DIGIC 4 offers several advancements.

A more powerful processor can carry out more processing in the same time and therefore perform more advanced processing functions. The DIGIC 4 is actually about 1.3 times faster at signal processing when compared to a DIGIC III and this has several effects. It produces lower image noise for smoother images at every ISO setting and it also allows the extreme expansion (ISO) settings of H1 (12,800) and H2 (25,600) on the EOS 5D Mark II.

The extra processing speed also helps if high ISO noise reduction is enabled. The cameras can retain their burst rate and shooting speed in all but the highest level of noise processing.

   Enlarge imageThe DIGIC 4 processor first appeared in the EOS 50D.

Much of the DIGIC 4 processing is similar to the DIGIC III but it has also added some new features such as Peripheral Illumination Correction to counter the possibility of corner shading, Face Detection AF in Live View mode, and UDMA class 6 card compatibility.

In the EOS 5D Mark II it has added the ability to shoot full HD 1080p movie with sound because the processor can deal with the data fast enough to process it out to the memory card without bottle necks.

Overall, DIGIC 4 means that the cameras capture images with visibly better image quality.

The EOS 7D and EOS-1D Mark IV both feature Dual DIGIC 4 processors. The benefits are the same as having a single processor in the EOS 5D Mark II, but with two processors the processing speed is faster – this allows these cameras to deal with high resolution images at 8fps and 10fps respectively.

The extra processing power has also allowed 50 and 60fps HD movie recording at 720p as well as higher ISO capabilities, with the EOS-1D Mark IV featuring ISO expansion up to ISO 102,400.

682
Canon EF Zoom Lenses / Re: Canon EF 100-400mm f/4.5-5.6 L IS USM
« on: February 11, 2011, 11:13:10 AM »
I'm hoping that winter is winding up, that pile of snow in my back yard is a small fraction of what was there.  Unfortunately, more snow if in the forecast.

It is nice to have a few days break and see a blue sky though. 

I usually use the 100-400L at short range, but I did not see anything better to photograph from my porch, and it was too cold to setup and wait for birds.  There was a flock of magpies around, but they are very shy, and do not sit still for more than 5 seconds.  They watch us in the house and leave if we head toward the door.

683
Site Information / Re: Non-responsive script
« on: February 11, 2011, 11:01:01 AM »
Firefox 3.6 on windows 7 64 bit.  Never a issue.  I turned off the default popup blocker and ads appeared instantly, its very fast.

684
Lenses / Re: 24 - 105 mm f/4 L IS II
« on: February 11, 2011, 10:41:24 AM »
The new 24-105 replacement was rumored last year as well.  Lens rumors are very difficult to get accurate information on.  It does not seem unreasonable that a new one could be coming with a wider focal range, but it will be much more expensive, so it won't pull down the value of my existing one that I paid $700 for new three or four years ago.  Back then the 5D kit with 24-105 cost a $600 premium over the base camera, and I bought the lens from a person who already had a 24-105 and just wanted to defray the cost of his 5D.

Mine has been a wonderful lens, on a crop camera, its a bit better than it is on my 5D.  I don't use it except as a outdoor walk around, and prefer to use primes if I can.  I even returned my new 70-200mm f/2.8L II because I found it easier to carry three primes with me.

If a new 24-105 replacement came out with a 5D MK III, I'd be tempted to buy the kit.

685
Software & Accessories / Re: canon replacing their scanners?
« on: February 11, 2011, 10:31:58 AM »
Is was announced last May, so its unlikely to be replaced soon.  Scanners do not sell very well, so there is no incentive to put out major new models.  I've had my Epson photo scanner for 3 years, and it really hasn't been improved upon by much.

When they come out with a USB3 scanner, it might be worth taking a look at.  Speed is the biggest thing if you are scanning hundreds of old negatives, and I have thousands left to do.  For slides though, the low cost photo scanners don't do well enough for me.

686
EOS Bodies / Re: T3 Sensor - question...
« on: February 11, 2011, 10:07:12 AM »
I'm not sure what this thread is predicated on.  where/why is the T3's MP count different from the 450D's?

T3 - 4272 x 2848
XSi - 4272 x 2848

yes they may have updated the manufacturing process (I don't know enough about it to know whether changing to gapless microlenses is a big deal), but I also don't know where the assumption that the sensor has changed is coming from.  given the fact that the max pixel counts are exactly identical, and that the T3 slots in even cheaper than the XSi, I am of the opinion that it's exactly the same sensor

The radically different high ISO performance for one.  Even with PC powered NR in post production the 450D isn't *close* to that good at high-iso.
[/quote]

Updating from Digic 3 to Digic 4 likely adds at least 3/4  stop.  Better noise reduction algorithms probably adds 1/2 stop, Changing to gapless micro lenses and updating the bayer filters, can add 1/2 stop, suddenly you get around  2 stops with the same basic sensor.  They can also make a lighter AA filter.  All this could make a big difference.

The simplest solution is usually the best one.

687
Portrait / Portrait of a Criminal
« on: February 10, 2011, 04:07:56 PM »
These portraits of criminals come from the archives of the police in Sydney.
Police officer-photographer who took them in the 1920s was to have a great sense of artistic, even ignoring the context each photo is superb.

Here is a link

http://www.microsofttranslator.com/bv.aspx?&lo=TP&from=&to=en&a=http%3A%2F%2Fwww.laboiteverte.fr%2Fportraits-de-criminels-australiens-dans-les-annees-1920%2F

688
Lenses / Re: Your lenses wishlist for 2011 - RESULTS
« on: February 10, 2011, 03:53:38 PM »
Great summary, thanks for taking the time!

Keep in mind the figure (and I hesitate to call it a fact, but it does seem reasonable) that 70-80% of Canon lenses are produced in Taiwan.  That means more than 70% of lenses Canon makes comprise the EF-S 18-55mm, EF-S 55-250mm, EF 50mm f/1.8 II, and EF 75-300mm's.  I'd venture a guess that the margin on L lenses is higher, but like the Rebel bodies, the >$300 lenses are the core of Canon's dSLR business.  The high end gear (L lenses and xD bodies) don't generate the same level of profit...at least direct profit.  But, the Canon gear in the hands of pros - at sporting events, shooting your wedding or portraits, etc., that's advertising for Canon.  That leads to stronger consumer sales or Rebels and EF-S lenses, which in turn funds the next round of R&D for xD bodies and L lenses.

+1

The DSLR Camera, Lens, and Accessory value to Canon continues to grow,  In their latest Financial Report, the consumer FY 2011 projection is for 23% of their volume on a unit basis to be DSLR, lenses and accessories, and in income value, 69%.


689
Canon EF Zoom Lenses / Re: Canon EF 100-400mm f/4.5-5.6 L IS USM
« on: February 10, 2011, 01:53:43 PM »
Just for the heck of it, I set up my 1D MK III on my back porch when we had a clear day last weekend and tried the 100-400mm L on Mt Spokane which is about 8 miles distant.  I knew the photos would not be picture perfect, there is 8 miles of air to distort the image.  I was suprised that those with TC's came out as good as they did.

I think the results show that you need to be close, but also that TC's work better than I expected as long as there is time to manually focus.

I used aperture priority, f/11, ISO 800,  shutter speeds varied from 1/2000 to 1/3200.  Even in good light, there is noise at ISO 800.  The camera could not reflect the aperture value properly with two TC's, but t did reduce shutter speed to compensate so the exposures were ok.

I focused on a television tower, the same one my wireless internet provider uses.  I used live view on the the shots and a wireless remote to help keep vibration down.  I also used as fast a shutter speed as I could.  I tried turning IS off, but results were better with it on, so all the 100-400mm images have IS turned on, even though it might not have worked with the stacked extenders.

First, a shot with a 50mm lens.  On a 1D MK III its slightly telephoto, but gives you a good idea of how far away the mountain is.



Next, a view at 400mm.



Now 560mm (with Canon 1.4X II TC)


Now 800mm (Canon 2X II TC) Manually focused using liveview.


Finally 11200 mm with the 1.4X and 2X Stacked and manually focused using liveview.


690
Lenses / Re: Canon EF 200-400 f/4L Review up on The Digital Picture
« on: February 10, 2011, 01:22:45 PM »
http://www.the-digital-picture.com/Reviews/Canon-EF-200-400mm-f-4-L-IS-USM-Extender-1.4x-Lens-Review.aspx

Just a thoughtful analysis of what the lens is likely to be, nothing firm or certain, but from a lens expert.

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