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Archive 2013 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280
  
 
howard
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p.8 #1 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


Photonic wrote:
Having a significant investment in Canon glass and flashes, I view the SL1 as a very interesting new offering. For me it offers the possibility of saving a full pound compared to my 5DM3 body when I am trekking or climbing regardless of what lens I pair it with.

Another way to look at the SL1 is as a replacement for a 1.4x teleconvertor that offers no light loss with only a 6 ounce weight premium. Oh yeah, you also get a back up camera in the bargain.

My enthusiasm for this camera is all predicated on image quality so I have
...Show more


I do not understand this TC analogy at all.



Mar 21, 2013 at 08:34 PM
Monito
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p.8 #2 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


howard wrote:
I do not understand this TC analogy at all.


Case 1: 18 Mpx at full-frame with (say) 400 mm lens. Costs 1 stop of light and puts extra elements in the optical path.

Case 2: 18 Mpx at 1.6 crop with (say) same 400 mm lens. No cost in light, no interference with the optical path, and a slight increase in effective focal length.

Sensel (pixel) image quality will be the deciding factor, excluding consideration of user interface, AF performance, and durability issues.

The SL1 weighs 407 grams vs 225 for the 1.4x III, so the weight penalty is 14 - 8 ounces = 6 oz.



Mar 21, 2013 at 08:41 PM
howard
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p.8 #3 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


Monito wrote:
Case 1: 18 Mpx at full-frame with (say) 400 mm lens. Costs 1 stop of light and puts extra elements in the optical path.

Case 2: 18 Mpx at 1.6 crop with (say) same 400 mm lens. No cost in light, no interference with the optical path, and a slight increase in effective focal length.

Sensel (pixel) image quality will be the deciding factor, excluding consideration of user interface, AF performance, and durability issues.

The SL1 weighs 407 grams vs 225 for the 1.4x III, so the weight penalty is 14 - 8 ounces = 6 oz.


But which Canon FF camera has 18mp? And what if you already have the 7D or 60D, how does this "TC" work then?



Mar 21, 2013 at 08:49 PM
Monito
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p.8 #4 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


howard wrote:
But which Canon FF camera has 18mp? And what if you already have the 7D or 60D, how does this "TC" work then?


1D X.

If you already have a 7D then the SL1 would add little or no benefit other than as a second (backup) camera.



Mar 21, 2013 at 08:56 PM
RobDickinson
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p.8 #5 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


You also effectively loose a stop with a crop body anyway


Mar 21, 2013 at 09:17 PM
voltaire
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p.8 #6 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


ok, I'll be the guinea pig; I pre-ordered the SL-1. I already am inclined to call it Slim 1. :-)


Mar 21, 2013 at 09:21 PM
Dave_EP
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p.8 #7 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


RobDickinson wrote:
You also effectively loose a stop with a crop body anyway


A stop of light or a stop of DOF ?



Mar 21, 2013 at 09:25 PM
skibum5
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p.8 #8 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


Imagemaster wrote:


On B&H is just talks about Hybrid CMOS II and that is just the contrast based AF system on it (which is supposedly still slower than competition by a long shot, even as hybrid?) and nothing to do with BSI or better DR/SNR. So there doesn't really seem to be evidence for a new sensor for the DSLRs. Not that I was expecting one before late 2013 anyway. It didn't seem to make sense they'd have them ready yet, at this point seeing what was put in 5D3/1DX and other info.



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Mar 21, 2013 at 09:28 PM
EB-1
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p.8 #9 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


Canon is really excelling at mediocrity now!

EBH



Mar 21, 2013 at 09:37 PM
M Lucca
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p.8 #10 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


EB-1 wrote:
Canon is really excelling at mediocrity now!

EBH


Why go full throttle when the nearest competition is committing self-mutilation by way of terrible QC and poor customer service.



Mar 21, 2013 at 09:48 PM
 

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Monito
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p.8 #11 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


RobDickinson wrote:
You also effectively loose a stop with a crop body anyway


Nope. No light loss. [Assuming you mean "lose" a stop.]

You gain depth of field with smaller sensors, but there is no light loss. In other words, you can make the same telephoto picture (or so similar that there is no effective difference for almost all photos) at a stop faster shutter speed than you would need to use on a full-frame plus tele-converter.



Mar 21, 2013 at 10:17 PM
StillFingerz
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p.8 #12 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


skibum5 wrote:


I was refering to the SX270 and SX280 HS...both sport the Digic 6 and BSI-CMOS sensor...I just highlighted the new bling from all four cameras released not individual ones geeeeeeez loosen up those shorts a bit



Mar 21, 2013 at 10:22 PM
howard
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p.8 #13 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


Dave_EP wrote:
A stop of light or a stop of DOF ?


Neither. With a crop sensor you just lose the outer areas of the image (~60% in the case of APS-C compared with FF).

(Please don't show me a link to "equivalence", I am familiar with that flawed concept).



Mar 21, 2013 at 10:38 PM
jctriguy
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p.8 #14 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


howard wrote:
Neither. With a crop sensor you just lose the outer areas of the image (~60% in the case of APS-C compared with FF).

(Please don't show me a link to "equivalence", I am familiar with that flawed concept).


I'd assume the loss of a stop was in reference to high ISO being better in a FF sensor, meaning a FF with 1.4x would effectively give you the same IQ as a crop with no extender. Just guessing at the original meaning though.



Mar 21, 2013 at 11:15 PM
EB-1
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p.8 #15 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


M Lucca wrote:
Why go full throttle when the nearest competition is committing self-mutilation by way of terrible QC and poor customer service.


I agree about the poor quality and customer service for some Canon products, but that is everywhere. There is very little competition in many product types, but everything seems to be mediocre and going nowhere.

EBH



Mar 22, 2013 at 12:36 AM
howard
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p.8 #16 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


EB-1 wrote:
I agree about the poor quality and customer service for some Canon products, but that is everywhere. There is very little competition in many product types, but everything seems to be mediocre and going nowhere.

EBH


I think his comment was meant to be a sarcastic reference to Nikon's reported poor QC, but which I think is overblown.



Mar 22, 2013 at 12:52 AM
MintMar
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p.8 #17 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


Sven Jeppesen wrote:
You can't compare the AF like that between so different cameras. It's not like a cross-type AF point is the same thing in all bodies. The 6D cross-type AF also have a vertical AF line with f/2,8 sensitivity. So it has both cross and a extra line.


Well, this is exactly how it works in xxxD world since 400D. They also have high precision ("f/2.8 sensitivity") in the center point.



Mar 22, 2013 at 01:24 AM
thw2
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p.8 #18 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


snapsy wrote:
I was going to write the exact same thing. Last year some friends asked me to shoot some baby photos. I took a 5DM3, D800, and a OM-D. I was expecting to use the situation to compare the AF performance of the 5DM3/D800 but after 10 shots with each I realized neither body could AF fast enough for this not-so-fast moving baby. Lighting was f/1.4 1/160 ISO 3200 mixed tungsten and both DSLRs took 3-4 seconds to lock every time. I took out the OM-D with the Pany 25mm f/1.4 and it locked focus within 1 second every shot. And
...Show more

My experience too. Face detection + CDAF = winner for OM-D.

Having said that, I have to admit I love the extra shallow DOF on the 5D3/6D.



Mar 22, 2013 at 02:01 AM
cputeq
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p.8 #19 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


Those comparing to m43 are missing a huge point - Canon doesnt have crap for small form factor compared to m43. Compare the SL1 and Tamron 60mm/2 to an OMD and 45/1.8...no freaking comparison, and m43 wins the total system bulk/weight by a mile.

Not saying SL1 is pointless, but youre buying a tiny body with a real immature lens selection to backup the entire concept of the camera!

It is not just bodies alone. Actually, physically hold an Olympus 48/1.8. Its freaking tiny, sharp wide open.

Heres hoping Canon extends their pancake lineup, as I really enjoy their 40mm on my 5d3 but IMO the lens is completely pointless on any crop over 1.3.

Edit - please dont take my "freakins" as antogonistic, more like italics but I am on an Ipad so it is hard to format .



Mar 22, 2013 at 02:10 AM
thedutt
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p.8 #20 · Just announced: Canon Rebel SL1, T5i & Powershot SX-280


It is well established that nikon (sony) sensors are better for DR & resolution. But just because its a plateau doesnt mean its a bad place to be, some of the most wonderful places in the world are a plateau and some peaks are downright scary ;-)

Canon has not improved sensor significantly since T2i/60D/7D for 1.6x cameras, but just like your daughter, I am quite happy with my t2i backup (which will be primary for the next couple of weeks given that the big brother 5DIII is @ canon for final warranty cleaning & checkup). It produces might fine photos.

Now if you see a significant difference in sensor performance under controlled tests between t2i & 7D and are positive that its not due to sensor variations, I am all ears.



darknite wrote:
Hey Thedutt What plateau are you talking about? Thats a serious question, not sarcasm BTW. I'm still stuck in the 1DII and XTI world for a little while, but look forward to the release of the 7DII

Is it the 18MP sensor? The MP count alone?

My son's 7D seems to produce better images than my daughter's T2i, both have 18 MP





Mar 22, 2013 at 02:17 AM
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