October 01, 2014, 11:25:10 PM

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Messages - rs

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I find when event shooting I tire out trying to continually see if the focus is locked on where I need it to be so I shoot one shot most of the time for focus confirmation. When people are moving towards or away I switch to AI Servo. I agree that AI Servo works well for static objects and many people leave it on.

I still to this day wonder with the technology out there why Canon could not provide a dedicated button or an assignable one that when you press and release switches to the other shooting mode. Maybe an indicator in the viewfinder. Even if you can assign another button yo have to hold it which I find uncomfortable. I just usually use the Q screen. It is typically on the FEC setting as I'm always tuning the flash so it takes a few extra seconds and is still a bit of a pain.         
Custom modes. You can have a whole raft of settings saved, available to you in an instant. Personally I use C1 for portraits/landscape etc - one shot AF, central AF point, AV mode (defaulted to wide open) etc. C2 is for action - AI servo, all AF points, Tv 1/500th etc. C3 is for flash - M etc.

No word on apertures or bodies used for the test, but judging by the different magnification, the Nikon and Zeiss were probably tested on a higher MP body than the Sony and the Sigma. Although having said that, both the Nikon and Zeiss are longer than 50mm.

I'm guessing the Nikon and Zeiss were on a D800, and the Sony was on a 24mp FF body. The Sigma looks to be tested on the same resolution too, but I'd have thought Sigma would make a Sony mount last, so possibly Canon mount on an A7?

Anyway, to me the Sigma appears slightly better than the Zeiss - but this doesn't reveal much - clearly different post processing, lower MP to hide problems, and no word on what aperture setting was used.

Lenses / Re: General purpose zoom for honeymoon
« on: February 26, 2014, 05:18:06 AM »
Thanks for all the comments. Some really great advice here.

I think I'll go with just maybe 2 primes. Think it might end up being 24mm and 100l (because I love macro).

And pack my compact for days when life is more important than ultimate iq

If you were considering taking a zoom plus one other lens as some have recommended, why not just take two primes? It's what you're used to, doesn't require any additional expenditure, and you already have a great idea how to use them and what results you'd be able to get with them. Plus two primes are typically lighter than a zoom and a prime.

This looks like the higher ISO's are mostly down to a jpeg processing change, in other words stronger noise reduction. The 'new' 16.2 MP sensor is probably the mild refresh it received when it was dropped in the Df.

The frame rate merely halves the gap between the D4 and the 1D X - nothing to make Canon sweat. And the other changes seem fairly minor for an all new higher priced replacement. Auto ISO in manual? A free of charge firmware update did that on that Canon side.

Canon's flagship model announced way back in 2011 is looking pretty good right now with its higher MP, frame rate and more AF points. The D5 might eventually trump it, but Canon will no doubt have a new model out around then. Or will the D5 just bridge the gap to the 1D X a little more?

FF cameras such as the 6D give better a better S/N ratio than crop cameras not because of the tech used in the sensors, but because of the size of their sensors.

If you compare a full image from a 6D taken with a 135mm lens at a fixed aperture and ISO, and then compare it to a crop image from a 6D (39%, as APS-C sees) at 85mm with the same aperture and ISO, it won't retain the same S/N ratio. The simple act of enlarging the output more from the crop to get the same final output means not only is the (61% weaker) signal magnified/enlarged, but the noise is magnified/enlarged too.

As long as the microlenses are gapless, and assuming the extra circuitry on the sensor introduces no more noise, more MP shouldn't lower the S/N ratio when looking at the image as a whole.

Lenses / Re: Lenses sharper on FF
« on: February 22, 2014, 04:44:40 PM »
The enlargement still applies when viewing at 100%.

J.R. - Viewing at 100% simply means a 1:1 mapping of pixels from the sensor to pixels on your monitor. It's a useful tool to see how detailed your image is by making sure none of the pixels are merged together when outputted to screen, but that's about it.

If the number of megapixels or the dpi of the monitor were to change, the size of the details at 1:1 or 100% would vary. Therefore stating it's at 100% is no way to quantify enlargement.

Enlargement is merely the ratio between the size of the image projected by the back of the lens (onto a sensor or film), compared to the output size (monitor, print etc). If you view a low quality picture on a 4" phone display it might appear fine. Enlarge it more to fill a 30" monitor, and any flaws within that image are more visible, or enlarged.

Polaroids are a good example of an output with no enlargement, whereas a smartphone photo printed as a large poster is the complete opposite. More MP don't mean less enlargement is needed for a particular output size. It's just the same as scanning a smaller section of film at higher res. If the detail isn't there in the first place (due to the lens, AF or whatever), more data in more pixels don't help.

When's the 8-15 going to be added?

EOS Bodies / Re: Full Frame Vs Crop Sensor
« on: February 20, 2014, 06:09:14 AM »
I honestly cannot agree with the recommendation that the OP keeps the 24-70mm lens. He's a photography student. He still has to learn and define his version of the art. If he uses the 24-70mm, then IMHO, his photographs will look like everybody else's photographs and he won't develop a style of his own that's marketable in a very competitive business. (Over here in South Africa, every idiot with a "Rebel" and Sigma budget zoom considers herself a "pro" photographer ... heck, scratch "pro" ... considers herself a photographer.)
I get what you're saying, but defining your own version of an art doesn't require being focal length limited and/or having inferior lenses. What's wrong with owning the ultimate, and not getting rid of it?

EOS Bodies / Re: Canon DSLR Announcement in March? [CR1]
« on: February 19, 2014, 08:26:22 AM »
Very unlikely. Although not 100% confirmed, it looks like the specs of the upcoming D4S are beaten on every front by the 2011 1D X.

PowerShot / Re: need help deciding:To canon or not to canon
« on: February 19, 2014, 08:21:09 AM »
On the surface, those requirements read like the spec sheet of the G1X mk II.

At this stage, downpour-sealed, great IQ and small'ish size are, in that order, my main criteria. Is the G1X2 weather-sealed and if it is, to what extent?
Sorry, my previous reply was to NWPhil.

How heavy a downpour? The Nikon AW1 might be your best bet short of a waterproof point and shoot?

Software & Accessories / Re: Waterproof bag/case options?
« on: February 19, 2014, 08:16:18 AM »
anyone have a 1300? what can you fit in it? anyone have an opinion on foam vs padded dividers? guess i will be making some cardboard boxes and testing them out.
Pick 'n pluck (foam):

Pros: can look the part, and it can also allow you to pad below shallow items in the case
Cons: lots of dust/debris, which could work its way inside cameras/lenses. Not strong, so you need to leave very thick inefficient gaps between items. Not reconfigurable should you want to change kit or layout.

Swap pros and cons over for padded dividers

EOS Bodies / Re: Full Frame Vs Crop Sensor
« on: February 19, 2014, 08:08:44 AM »
Sabaki, for a way to compare bodies, take a look at some of the comparisons here:


People can give you the maths and their own personal experiences, but this is an objective way of you seeing differences without having the two cameras in your hands.

Oh, just saw your signature with your gear list ... Personally, I'd sell the EOS 500D, the EF-S 10-22mm and the EF 24-70mm ...
I would personally do anything to keep hold of the 24-70 II. It's a simply fantastic lens that shines on FF.

PowerShot / Re: need help deciding:To canon or not to canon
« on: February 18, 2014, 03:52:45 PM »
On the surface, those requirements read like the spec sheet of the G1X mk II. Are you sure that's not number one on your list, and this is just a last ditch attempt to see if anyone can talk you out of it?  ;)

I'd say go for it!

Software & Accessories / Re: Waterproof bag/case options?
« on: February 18, 2014, 09:58:04 AM »
is that a surf ski? only time ive used a racing kayak like that i got dumped like 8 times in 6 minutes. I prefer the double sea kayak ;).
It's a sprint kayak. And yes, keeping upright in those is only possible if you've got a few years practice behind you, and you start from a young age.

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