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Topics - traveller

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31
EOS Bodies / When will Canon launch the EOS 3D?
« on: March 04, 2012, 07:20:09 PM »
First, let me state that I think that the 5D MkIII is going to be an awesome 'all-rounder' camera, however there are still quite a few people who want more megapixels.  The D800 has caused quite a sensation (I've even heard a dedicated medium format film fan talking about buying one and going digital) and whilst I'm sure that Canon will be happy with 5D MkIII sales, I'm think that there will also be a bitter feeling of "that show used to belong to us!" at Canon HQ. 

There was quite a few rumours of a 39MP sensored prototype some months back and now I'm wondering whether Canon will be tempted to put it into a production body.  Another question would be whether this would be a 1Ds X, a 5Ds MkIII, or call it something new like a "3D".  I don't think that a 1Ds X is likely, following Canon's marketing line that the 1D and 1Ds have been amalgamated.  Futhermore, the previous Canon and Nikon generation showed that there wasn't as much demand for a full size high resolution body as for a compact/lower price model.  That leaves either a 5Ds MkIII (essentially just a 5D MkII with a high resolution sensor) or something new -call it a 3D.  The former would be low frame rate (I guess ~ 3.5fps with a single Digic 5), the latter might be dual-digic 5, with 5+fps.  This would allow Canon to more easily exploit a higher price point than either the 5D MkIII or D800.  I also believe that there's noting wrong in marketing terms with using the "3D" moniker; it's doubtful that anyone buying a camera at this price point would get confused with 3D capabilities.  It might also be a good marketing line "resolution that gives your pictures the 3D look" etc.

Yes, I know that Canon have only just announced the 5D MkIII, but this is a rumours site and so I feel that speculation is acceptable, even at this early stage! An EOS 3D would be a welcome addition that would be good marketing and satisfy demand for a "big print" camera from landscape photographers who can't justify medium format prices. 

32
EOS Bodies / Is '22' the magic number?
« on: March 04, 2012, 03:23:45 PM »
Is anyone else betting that the new crop of APS-C DSLRs (pun noted) will feature a 22MP sensor? It would be in the ballpark for previous percentage resolution increases and is about the bare minimum that most people can notice.  It would also tie in nicely with the 5D MkIII's resolution for marketing purposes. 

33
EOS Bodies - For Stills / HELP! Can't remove dirt from 1Ds MkIII sensor!
« on: February 06, 2012, 01:08:11 PM »
A mate of mine is having problems with his 1Ds MkIII's sensor  :'(, he keeps seeing the dust bunnies in shots, but he has cleaned the sensor five or six times with swabs and this hasn't cleared them.  He's also sent the camera off for cleaning (not to Canon yet) and they don't think it's dirt... I've attached a sample image. 

Does anyone have any suggestions as to what this could be, or how to get rid of it?

Thanks in advance.

34
So, Pentax has released the K-01 -which is basically an SLR with the mirror and viewfinder removed.  The main advantage of this for the user is that it should be fully compatible with most K-mount lenses (the advanage for the company is that it should be cheaper to produce and yet command a premium price!).  The disadvantage is that you lose phase detect AF and the optical viewfinder and only get a marginally smaller body than the K5 in return. 

With Canon pretty luke warm on the whole mirrorless business, might this concept prove an attractive option for them? Earlier in the year Canon were saying how they could still make DSLRs smaller and questioned whether mirrorless cameras needed interchangeable lenses.  Now we've had the G1X, which falls nicely into the latter category, might we soon see Canon's version of the K-01?

36
I had to laugh when I saw this advertised on Amazon:

http://www.amazon.com/dp/B005J906LK/ref=asc_df_B005J906LK1815594/?tag=dpreviewbuybox-20&creative=394997&creativeASIN=B005J906LK&linkCode=asn

It's not so much that this obvious marketing gimmick exists, it's the bit below where Amazon reveals "What Other Items Do Customers Buy After Viewing This Item?"  ;D

37
Canon General / Very strange lens mug
« on: November 26, 2011, 09:48:07 AM »
Take a look at this bizarre hybrid:

http://www.iwantoneofthose.com/10380179.html

The design looks Nikon, but the markings are a curious mixture of Canon and Pentax!

38
Canon General / Photography kit getting more expensive...
« on: October 07, 2011, 01:26:04 PM »
http://www.x-convert.com/chart/USD-JPY?period=5y

http://www.x-convert.com/chart/GBP-JPY?period=5y

Bugger.  Still, good for exports... If we actually made anything they wanted!

39
EOS Bodies / Jessops drops price of 5D Mk2 to £1599
« on: August 22, 2011, 01:05:08 PM »
I noticed this today in their shop window, it isn't like Jessops to try to get attention by dropping prices.  Perhaps they're trying to clear out some old stock; I'm sure that some people will draw the implication that a 5D Mk3 must be close, but that seems to be against the majority opinion. 

40
EOS Bodies / 60D + EFS17-55 f/2.8 - £1000 at Tesco
« on: June 18, 2011, 07:18:19 PM »
Just seen this; could be just the ticket for someone - I think that the price is probably a mistake, but they may honour it if you place an order...

41
Canon General / The T3/1100D's sensor
« on: April 22, 2011, 06:54:03 AM »
I remember when the T3/1100D was first announced, several people were wondering if its 12MP sensor was the same as the one in the XSi/450D.  The Digital Picture now has his standard comparison chart up and I'm wondering what it shows.

(http://www.the-digital-picture.com/Reviews/Canon-EOS-Rebel-T3-1100D-Digital-SLR-Camera-Review.aspx)

What I see on the colour patch target is that the noise levels on the 450D & 1100D look pretty much identical up to ISO200, with a marginal improvement for the newer camera at ISO400.  At ISO 800 & 1600, the 1100D looks to pull ahead by about half a stop.  The question is whether this is improved sensor performance, or are Canon doing noise reduction on the RAW data?  I'm not sure it's easy to tell from the colour chart, but there may be a clue in the fabric comparisons.  The 450D shows very little moire, whereas the 1100D shows bucket loads of it; this suggests that the 1100D has a weaker AA filter, but why? Surely an entry level buyer of a 12MP camera would be more likely to see moire when using a kit lens than notice any increase in resolution (to be fair, noticing either would probably require viewing the image at 100%).  Perhaps Canon have saved costs by using their standard AA filter tuned to the 18MP sensors, but then why use the 12MP sensor at all? The other explantion might be that Canon have fitted a weaker AA filter to cover for lost detail caused by RAW data noise reduction. 

I'm no expert here, but I know that a lot of other people on this forum seem to have a good grasp of the technicalities: any ideas...? 

42
EOS Bodies / Nikon Mirrorless to be launched in March?
« on: January 03, 2011, 06:06:03 AM »
NR thinks so, based upon an article in the German DSLR Magazine.  So with Pentax hinting at a mirrorless camera in development and Canon still "monitoring developments", perhaps "the first shall be last and the last shall be first" (apologies on my poor biblical referencing!). 

Have Canon missed the boat? In a way, it doesn't matter for anyone considering a puchase because using existing DSLR lenses via an adaptor is a poor solution to the lack of lens availability on current systems.  This is micro-4/3rd's greatest advantage over the current Sony/Samsung offerings (credit to Samsung and their comprehensive roadmap). 

Whilst mirrorless is currently not up to DSLR technology in performance terms, either it or Sony's SLT technology (ironically pioneered by Canon in the sixties) probably represent the future.  The 500lb Gorilla of the consumer electronics world is hedging its bets, while the old silverback of the camera world seems to be digging its heels (or its head) into the sand. 

43
Lenses / Who do you trust?
« on: December 28, 2010, 07:12:10 AM »
I know of the following sites that do lens reviews:

http://www.photozone.de/
http://www.dpreview.com/lensreviews/
http://www.the-digital-picture.com/
http://www.slrgear.com/reviews/index.php
http://www.lenstip.com/
http://www.photodo.com/
http://www.bythom.com/index.htm - is of potential use for third party lenses

and of course

http://www.pixel-peeper.com/ to do your own comparisons (assuming the photographer's technique is good and you can find a hi-res version). 

I often find that there are quite large differences in their resolution (sharpness -sic) tests of the same lens.  Can this be explaiined solely by sample variation, or is it down to the testing methods they use? Also, the measurements they come back with vary, from line pairs per picture height (DPR) to 'blur units' (SLR Gear). 

I would therefore like to pose the following question to members of this forum: which site do you prefer and why?

P.S. I forgot CR itself! Whilst I think the 70-200 IS II review was good, it would be nice to have some more... Please?!!


44
EOS Bodies / AF sensors -technical issues
« on: October 17, 2010, 03:03:28 PM »
Does anyone on this forum know how phase detect AF sensors actually work and perhaps, how expensive they are to manufacture.  I'm not talking about the general principals of splitting light beams and measuring the difference in phase, but the 'nitty-gritty' details.  For example how does this pattern of silicon photodetectors:

http://a.img-dpreview.com/reviews/CanonEOS5DMarkII/Images/features/af02.jpg

relate to the pattern seen in the viewfinder?  And how does it relate to this:

http://a.img-dpreview.com/reviews/CanonEOS7D/Images/whatsnew_afsensor.jpg

i.e. how exactly does one pattern lead to 9 AF points (1 cross type, 6 AF assist points) and the other lead to 19 AF points,all cross type?

45
Site Information / Time zone
« on: October 17, 2010, 02:44:42 PM »
Where the heck is Canonrumors hosted? The time clock shows 02:40 AM on Monday 18th October as I write.  My watch says 1940hrs British Summer Time (GMT +1) on Sunday 17th October, which puts Canonrumors in Central Russia, the Far East or Western Australia.  Funny, because I thought that you were Canadian!

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