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Messages - robbinzo

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Canon General / Re: In need of a "walk around" camera
« on: March 07, 2014, 06:07:47 AM »
the new Fuji X-T1 all the way

The view finder is massive for such a small camera and is very good for manual focus with twin screens for peaking at detail.

Lenses / Re: Strange AFMA results with canon 50 f1.4
« on: February 25, 2014, 05:21:51 PM »
AFMA for my 50 f/1.4 seems to change every time I put it on my 70D.
Using Reikan Focal I get somewhere from +13 to +20 at f/1.4.
My lens also varies with subject distance.
I have sent this lens back to Canon and it came back exactly the same.
I've posted before that I use live view on my 70D with this lens whenever possible because it's so hit and miss through the viewfinder. The dual pixel liveview AF has been much more accurate for me with this lens.

I've been thinking about going Sigma because of AF issues with my Canon 50 f/1.4.
I love the shots I get with it but there used to be so many out of focus shots that it was just infuriating. I was teetering on the brink of selling it.
However, since I bought my 70D, I can nail focus most of the time. Why? Dual pixel AF technology. I am almost exclusively using live view AF now with my nifty fifty and I can report that the results are so many times more consistent than even the very good inherited-from-the-7D AF system can produce.
I've been shooting indoors today with f/2.0 with a shutter speed of 1/100 albeit pushing the ISO a bit but the results are very good indeed.
Even adjusting the AFMA doesn't come close to the live view focus because the focus is achieved on the sensor and there are no adjustments necessary in live view. It was a real wow moment.
The live view seems to be pretty quick too. Not much messing around hunting for focus.
I love my 50 again!
This also begs the question: Would the Dual Pixel AF system work well with 3rd party lenses?
Has anyone out there used the 70D with a 3rd party lens and found their results have improved?

Lenses / Re: The 10 Oldest Canon Lenses in Production
« on: January 10, 2014, 03:47:51 PM »
I don't think that Canon should replace the 50mm f/1.4 with a f/1.8 IS. The reason being the Sigma Art lenses.
I would hazard a guess that a new Canon 50mm f/1.8 IS would be a similar price to the new Sigma 50mm f/1.4. That would be an interesting choice.

Canon General / Re: What you like the most in Canon 70D
« on: January 04, 2014, 10:26:17 AM »
I've just purchased the 70D from DigitalRev. Really good service by the way.
I haven't had a lot of time to play around with it yet, but here are a few thoughts:
I upgraded from a 550D so I really like the autofocus system on the 70D. Outside in reasonanble light with a 17/40mm f/4 lens focus is rapid and accurate with no focus hunting. All the AF points seem to work equally well.
I like the integrated speedlite transmitter. Works well indoors so far.
The ISO performance is not much of an upgrade from the 550D if at all, which I expected. However, ramping up the ISO to 25,600 and shooting B&W gives some interesting results.
I really do like the Dual pixel AF in movie mode. I like the touchscreen for focusing in movie mode, although in low light this system hunts a lot when taking photos in liveview mode. Not a surprise and not really an issue.
Built in electronic level is very helpful and also like the shutter count in the battery info.
All in all I'm really happy with my new camera.

Now, I'm sure somebody will correct me very quickly if I am wrong but...
The A7R does not have an optical low-pass filter. This means it struggles with AF but gets cleaner data from the sensor. Doesn't the low pass filter blur the image slightly?
So yes, you get cleaner images from a sensor without a low pass filter but it also has it's drawbacks - i.e. the AF sucks.

I read an article in The British Journal of Photography a while ago by someone (haven't got the mag with me so can't check) saying that they preferred the 5D because its ISO noise was closer to film grain. Low noise at high ISO doesn't always convey the feel you want.
I've been tempted to buy a 5D myself but as people have stated, the rear screen isn't ideal and it is a dust magnet.
Good idea. I do like the idea of the 5D for portraits instead of my 550D.

Lenses / Re: 17-40 VS 17-55
« on: October 24, 2013, 03:21:33 AM »
I believe the answer to your question is to try out both lenses for yourself.
However, here are my thoughts (in no particular order) on my 17-40mm:
The 17-55 EFS gets rave reviews for it's optics but personally I'm not so bothered about razor sharp images.
I use the 17-40 mm L on my 550D a lot because it has the right focal length range for me.
I like the fact that the 17-40 focuses and zooms internally - the front element does not extend.
Corner sharpness is not such an issue on crop as it is on FF.
Note: The 17-40mm L auto-focuses very quickly.
I don't use the 17-40mm for my livelihood so I'm not too bothered by a little barrel distortion or softness.
This lens is relatively robust and seems well balanced on my 550D.
Having said all that, an extra f stop is always nice to have.

Black & White / Re: A Light Read
« on: September 15, 2013, 08:57:23 AM »
I personally like the picture as it is and I don't think that it needs anything added.
It captures a moment, which is what photography is all about.
I agree that cropping out the dark to the right would help the shot.

Third Party Manufacturers / Re: Rumored Sigma Lenses Coming in the Next Year
« on: September 14, 2013, 06:48:18 AM »
And if the 24-70 actually is an f2, that would probably be on my camera most of the time.

I agree. I would buy a 24-70 OS HSM in a heartbeat. Image stabilisation and f/2? That would be an interesting comparison to Canon's 24-70 f/2.8 II L.
I think what Sigma are doing is very exciting - and will also be very good for us consumers.

Reviews / Re: Review - Canon EF 17-40mm f/4L
« on: September 12, 2013, 07:39:32 AM »
Is the 17-40 really a metal body? Mine appears to be engineering plastic as the main body with a metal zoom ring.


EOS Bodies / Re: The last Canon crop sensor - ever
« on: August 09, 2013, 02:51:43 PM »
Add more little cross-type(AF points) to 6D and give it 1-3 more fps, I think people will be over it, including me.


Street & City / Re: Reprimanded for a photograph
« on: August 09, 2013, 02:15:38 PM »
You have to exercise caution in the Middle East and be aware of what the law is, not what you believe is culturally sensitive.
I have worked in the middle east. I know people who have spents days in just prison for talking to a local woman in Iran.
The locals in UAE do like the trappings of Western culture. You see Burkas and Guchi handbags. It is a strange mix and it is normal. You are not allowed to drink but the law turns a blind eye. If you are in a trraffic accident with a local, it is automatically your fault because you shouldn't be in their country.
There is the recent case of Marte Deborah Dalelv who was imprisoned in UAE after being raped: "The 24-year-old reported the March attack to the police but found herself charged with having extramarital sex, drinking alcohol, and perjury."

This is not me being melodramatic but if you had been seen taking this photo you may have regretted it.

Lenses / Re: On a crop sensor...EF17-40L or EFS15-85?
« on: August 05, 2013, 08:07:13 PM »
I've just recently purchased the 17-40 mm L. I love it.
On my 550D with the centre cross-type AF point it focuses extremely fast.
Depends what you need but I have the 28-135 when I need more zoom so didn't feel the need to buy the 15-85mm.
I have found that I don't really need anything more than the 17-40mm for my purposes and it is rarely off my camera nowadays.
Have you considered the Sigma 15-35mm f/1.8? Rave reviews.

I've been having the 6D vs 70D debate with myself for a while and I think I will purchase whichever I decide on from DigitalRev because the price difference is significant.
From what I see Parkcameras are one of the most competitive online retailers in the UK and I have bought from them in the past. Just comparing one lens I am looking at, Canon EF 200mm f/2.8L II USM there isn't much difference:

DigitalRev price £580
Parkcameras price £599

However the cost of the 6D is much different:

DigitalRev price £1149
Parkcameras price £1499

Personally, I am not going to pay a £350 premium to support UK traders in this instance.

I don't think it is unethical to save yourself and your family money. I do think that it is unethical to have different prices in different locations. I don't like to see the price in $US being the same as £UK on the internet. I feel aggrieved as a customer for this price disparity.

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