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Messages - dilbert

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Lenses / Re: Canon EF 24 f/2.8 IS USM
« on: February 06, 2012, 12:37:49 PM »
Comparing the image of the 24/2.8 IS USM with that of the 28/2.8 IS USM, the only difference between the pictures appears to be the "4" and "8". I find that very hard to believe in reality - the lenses would seemingly need to be more different, if only that it would be next to impossible to take photographs of two products that were the same in every way (reflections, etc) except for two numbers.

Has anyone loaded both of these into photoshop and done some pixel peeping?

I suspect that one of these two is real and the other is not.

Lenses / Re: Canon EF 28 f/2.8 IS USM
« on: February 06, 2012, 12:33:13 PM »
This doesnt make sense for me! 24 and 28 at 2.8??? Why???

Maybe they renew all primes with is?

If you consider that Sony, their competition, has an IS sensor and thus all of the lenses that you mount on a Sony camera thus benefit from that then yes, there is motivation for Canon to re-release many of their primes with IS.

Third Party Manufacturers / Re: Tamron 24-70 f/2.8 VC Announced
« on: February 06, 2012, 12:28:22 PM »
Missing from the headlines on the front page is that the filter size is 82mm - the same as the 24-70II from Canon. Its weight is quoted at 825g and length as 108.5mm (Nikon version.)

It will be very interesting to see what the price of this is.

If Tamron price this at around half or less than the new 24-70II from Canon then buying this could be cheaper than buying each of the 24/2.8 IS USM and the 28/2.8 IS USM (also rumored).

It will be very interesting to see how the IQ of this Tamron lens does against the new 24-70, the old 24-70 and the various primes in the range.

If I was to fix Canon, what I'd fix would be the wide angle lenses, specifically, the zooms.

Between 14 and 24 is a huge gap and a 19mm (even f4) that had good corner to corner resolution and didn't have bad ass field curvature would be great.

But how often do I use or need that? Not very.

Specifically, my only complaints about Canon are the pattern noise on sensors in areas that are not exposed well at higher ISOs and corner sharpness on the wider zooms.

You don't need to be a wildlife/sports shooter to use a 300/f4 or 135/f2. Hmm, a bunch of shots recently worked very well at 135 on a zoom so maybe I should do some research into the 135....

Landscape / Re: Post your best HDR Photographs
« on: February 05, 2012, 04:00:04 PM »
The Forgotten Janitor's Bucke, Montreal and Abandoned actually look natural. The rest just aren't right.

Willamet Valley - the country side is just too bright for the overcast sky

The field with the wooden fence - the shadows from the trees are too light.

EOS Bodies / Re: Patent: 400 f/4, 300 f/4, 200 f/5.6
« on: February 03, 2012, 05:56:50 PM »
Time for a dumb question: doesn't an image height of 21.64mm imply that these are all less than FF (24x36)?   These could be for ef-s (22.2x14.8), or even a future mirrorless system?   

I think more likely I'm just not understanding how the given image height factors into sensor size.   Anyone who can clarify, please do!    ???

That image height is larger than is required by EF-S. It's also larger than is required for APS-H (1.3x crop from 1D series) but not large enough for FF.

There is something quite strange going on ...

Looking at the size of them:
400/4 - 28cm
200/5.6 - 18cm
300/4 - 24cm

Current models:
300/4 - 22cm
400/5.6 - 26cm
400/4 DO - 23cm

... why should the 300/4 and 400/4 in the patent be larger than is required for FF?

So here's my bet..

All three are "Cinema" lenses.

EOS Bodies / Re: 2 different 5Ds coming in 2012 ???!!!!!
« on: February 02, 2012, 08:37:47 PM »
An "EOS 3C" (between the 1 & 5 and targetted at cinema) would let them escape the problems of naming their camera "3D" if it doesn't shoot 3D video.

I would make a 3D model the didnt shoot 3D video on purpose just to generate rumour traffic
personally I hate 3D movies as it gives me really bad eye strain. I dont think its good you your long term eye sight watching that stuff

Some of that may be due to the fact that current 3D movies have half the frame rate of non-3D. "The Hobbit" will supposedly be the first movie that fixes that problem because it is being shot at twice the normal frame rate.

EOS Bodies / Re: 2 different 5Ds coming in 2012 ???!!!!!
« on: February 02, 2012, 08:21:30 PM »
An "EOS 3C" (between the 1 & 5 and targetted at cinema) would let them escape the problems of naming their camera "3D" if it doesn't shoot 3D video.

EOS Bodies / Re: From NL: Wait for 5D3 could be longer
« on: February 01, 2012, 08:25:12 PM »
October? No way.

Why not?

What if Canon introduce a new high end camera at the end of this month that isn't a 5D2 successor and is priced at $3000 to $4000? Doesn't that then give Canon room to introduce a 5D3 later in the year?

Their ability to do that will largely depend on where Nikon introduce the D800. If the D800 is introduced at (say) $2000-$2500 then introducing a 3D with similar specs (but lower MP?) at over $3000 would not be that successful.

PowerShot / Re: "Best compact camera" - DxO review G1X
« on: February 01, 2012, 02:45:27 PM »
I'm not impressed.
Only 10,8 DR? Nothing new from Canon, indeed.
If I want a smaller camera, I'll take the Sony Nex-7N or 5N. I know 7N has a bigger sensor as G1X, but not for much.
The Sony Nex-7N has a even better score than Canon 5D Mark II (fullframe sensor!)!!!

The NEX-7 requires bigger lenses so you cannot pocket the NEX-7 and lenses with the same zoom range like you can the G1X.

btw, there is no NEX-7N, it is the NEX-5N.

Appreciating the G1X requires understanding for what it IS and IS NOT.

PowerShot / Re: "Best compact camera" - DxO review G1X
« on: February 01, 2012, 12:14:40 PM »
It reminds me of that quote.. maybe it's from Community
"It's better than good, it's good enough"

If they were gonna do this they probably should have gone smaller sensor, bigger zoom range, smaller lens, similar performance as this.

My bet is that if they went smaller then it wouldn't have enough megapixels to attract buyers.

PowerShot / Re: "Best compact camera" - DxO review G1X
« on: February 01, 2012, 10:43:58 AM »
You can see that the sensor in the G1X has similar performance to that of the 7D.

As DxOMark points out, that's both good and bad.

Good: getting the IQ of a dSLR in a much smaller form factor.

Bad: a newly-designed sensor for a 2012 camera, with the same 4.2┬Ám pixel size as the 7D, performs essentially identically to the 7D, a sensor designed about 2.5 years before the G1X.

That means that either 1) Canon didn't try to improve the pixel characteristics of the sensor, 2) they tried to make it better and failed, or 3) they do have the ability to make it better, but chose not to include those enhancements in the G1X sensor.  I think #1 is pretty unlikely.  I hope it's not #2, because that bodes poorly for the next generation of APS-C sensors they release.  I'd be unsurprised by #3 - in fact, that's very logical if they're going to release a new APS-C sensor (7DII, 70D) soon and want to prempt comments like 'Canon's much cheaper point-and-shoot G1X offers the same IQ as this expensive new dSLR'.

Yes, I agree with (3) - they've recycled/reused sensor technology from the 7D into this smaller sensor/camera. I'd bet that they went with a known factor and the ability to recycle existing technology from higher up in their camera line. I would not be surprised if this was another "short lead time" camera and thus they've taken existing parts to design and build a new camera rather than come up with new bits.

PowerShot / "Best compact camera" - DxO review G1X
« on: February 01, 2012, 10:15:53 AM »

And on this page:

You can see that the sensor in the G1X has similar performance to that of the 7D.

It whips the Nikon 1 series quite extensively and anything aside from the latest m4/3s cameras don't stand a chance.

EOS Bodies / Re: *UPDATE* New High-End DSLR Later in February [CR3]
« on: January 30, 2012, 04:33:34 PM »
I am thinking the "leak" of the photo that we all questioned will be the announcement.  With the news that the president of Canon resigned due to slumping sales/Tsunami, I would think they would want to gain some momentum heading into the summer of this year when people seem to be looser with their wallets.  They know that people are holding onto their wallets for the new 5d mkiii or the possibly the Eos 3? So, logic would dictate in order to recapture that lost revenue they would announce cameras very soon. 

Hopefully it is an Eos 3 and it is a high-end stills only camera, whereas the 1 series has merged with their video. Just my 2 cents.

After the success of the 5D Mark II, there will never again be a new DSLR introduced without video.

EOS Bodies - For Stills / Re: The best ways to (not) get your gear stolen
« on: January 30, 2012, 01:47:03 PM »
Don't invite people to steal it.

How might you do that?

Put your backpack down and then walk 100m away to take a photograph.

Put your camera gear down on a table to sit down for breakfast/lunch/dinner and then walk away to find nourishment.

In all of my travel, I've seen two instances of travellers losing their belongings.

The first was on a boat from the Venice train station to the main island - a lady had left her hand bag open and her purse was easily visible. Even though the boat is full of tourists, nobody is watching it, everyone is looking around to see Venice. She arrived at the dock, looked into her hand bag and there was no purse.

The second was at a major train station. Again the victim was a woman. She was travelling alone, put her bags down at a table and then wandered off to get some breakfast. When she returned one of her bags had gone missing.

In both instances, pain could have been avoided by very simple measures.

As a tourist in a foreign country, unless you do something really silly (like the above two women), you're more likely to get ripped off (because you don't know what the real price of something is) than you are of being robbed.

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