November 26, 2014, 01:40:49 PM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - ajfotofilmagem

Pages: [1] 2 3 ... 72
1
While Sigma 24-105 is a good lens, it does nothing beyond what other manufacturers already did. Unlike other lenses Art series, which brought high quality, like 35mm and 50mm, and unprecedented maximum aperture in 18-35mm F1.8.

2
Probably Sigma 24-105 does not sell as well as expected. They should concentrate on the manufacture of 35 and 50 Art, which seem to disappear from the shelves quickly.

3
Lenses / Re: Landscape Lens for Crop To Make Me Go Wow!
« on: November 25, 2014, 08:43:06 PM »
Ryan85, if I read the B&H reviews the 18-135 STM I already have rates even better than the tamron one! (It rates 5 stars) I wonder whether I might be better upgrading the body first then using AFMA to ensure all my lens are spot on before I go looking for more lens.
AFMA makes more accurate autofocus by phase detection, when shooting with the eye in the viewfinder. On the other hand, the auto focus by contrast detection in live view does not use AFMA. If the auto focus in live view is not accurate, then your lens is not good enough.

Take a test photographing the same object in the same lighting (good light), with only the activated central focal point. Repeat 3 pictures in live view, and 3 other looking at optical viewfinder. If pictures by optical viewfinder does not have as accurate focus as live view, so AFMA in the camera will help you get the best performance of your lenses.

4
Lenses / Re: Landscape Lens for Crop To Make Me Go Wow!
« on: November 25, 2014, 07:09:54 PM »
ajfotofilmagem - 'Wow' as in image quality/sharpness. That's what I particularly noticed in using the 70-300L and the 50mm over the 18-135.

Coz - Yeah I don't want to go really wide. I often have trouble composing at 18mm so not sure how I would go at 10mm. That's a reason why I have been a little unsure about the 10-18 and 10-22 lens. They may just be too wide. It's why I am probably tending more the 16ish-35ish range. But then again, maybe its an opportunity to learn some new composition skills!
The Sigma 18-35mm F1.8 has very impressive image quality, as well as Canon 15-85mm.

5
Lenses / Re: Landscape Lens for Crop To Make Me Go Wow!
« on: November 25, 2014, 06:21:32 PM »
Which means Wow you?

Something that your standard zoom can not do, as extremely selective focus, extremely wide viewing angle?
Or extremely high image quality?

Sigma 8-16mm seems to satisfy both of these desires.

6
Canon General / Re: Does Canon really deserve this?
« on: November 25, 2014, 05:37:38 PM »
I agree, I was looking out for the people who might be impressionable enough to buy into your snake oil garbage and I assumed you knew better, sorry if I overestimated you.
Like I said, it kind of sounds logical, but is completely erroneous and you are doing those that don't know better a huge disservice by repeating such utter garbage.
Honestly, I am totally gobsmacked by the abusive resistance from the CR "regulars" to the suggestion that Canon should drop the "crop-frame" system.
I read canonrumors for many years, and I see consumers in North America complaining of how Canon is a greedy company. I also see many snub the APS-C users, as if they were ignorant and undemanding people. :(

There is a wide range of photographers on this planet, and not everyone has the money to full frame, or do not want to carry more heavy and expensive equipment. ::)

Here in Brazil, a ordinary Canon 6D + 24-105mmL is being sold in Canon official store at a price equal to 4,700 US dollars. :o :o :o :o :o There is the option to buy cameras from smugglers, and without warranty valid. :-[ :'(
I live in a city with 6 million inhabitants, where 90% of marriages are photographed with a Canon 60D or 7D + 18-135mm lens + flash. :'( In Nikon side is used D90 or D7000 + 18-105mm + flash. :-X

Someone keeps thinking that in the future all cameras will be full frame? :-X

7
Lenses / Re: Lens as a gift. Non Photographer buying... :)
« on: November 25, 2014, 08:07:52 AM »
In the case of gifts for photographers, a guessing exercise can be disappointing. In this case it is better to predictable choices:

She has an old camera Rebel? A new Rebel will make her happy, without risk of unpleasant surprises.

She says she feels her Rebel small and slow? A 70D will satisfy it without being too heavy.

She wants a lens for portraits in low light? Sigma 50mm Art is exciting, but heavy and expensive. Canon 85mm F1.8 is very nice. Canon 100mm L Macro is great, if the light is not too weak.

8
EOS Bodies / Re: Another 50mp FF DSLR Mention [CR2]
« on: November 24, 2014, 08:51:33 AM »
I believe there is more of a high megapixel sensor under test. I do not think Canon will take a leap of 22 to 50 megapixel. Maybe 38?

9
I've read that the 24mm efs does nit fit a 7d, does anybody knows something about this?
Wrong information.
All EF-S lenses work in 7D and all Canon APS-C cameras.

10
Third Party Manufacturers / Re: Switching to Full Frame
« on: November 23, 2014, 07:22:44 PM »
Key Questions:

You make what types of photography?
Low light?
Fast moving objects?
Paper prints larger than 1 meter?
know the Nikon lenses that could replace your current?

11
Speedlites, Printers, Accessories / Re: Uneven Battery Usage in 580EXII
« on: November 23, 2014, 04:31:14 PM »
If never happened twice with the same battery, but always with a different battery ... I suspect dirty electrical contacts, causing overheating.

Notice if it always happens with the battery that was in slot 1 (or 2, or whatever).

12
EOS Bodies - For Stills / Re: ISO TESTING, BY STUPID METHODS
« on: November 23, 2014, 09:24:00 AM »
Dear Teachers and Friends.
Yes, I want to test the night time photos of the black sky, to see the Noise = Yes, I can see them of the Higher ISO.
Camera, 7D MK II, Lens Tamron (15 years old ) 11-18 mm. F/ 4.5-5.6  SP AF ASPHERICAL Di II LD IF, Set Camera at AV mode at F= 8.0, Set Lens at Manual Focus at Near infinity.
After that, Set IS , start from 100, to the highest ISO of this Camera.
Just Low tech Test in my Idea, Yes, On the medium Tripods, and use Self Timer for minimum Vibration.
Dear friend Surapon. This second test has less environmental variables, and the result is more scientifically repeatable.
To make viewing easier noise, I suggest making a crop from the original 20 megapixel, with the central area of the image (the car and the wall of stones) with resolution 1200x800 pixel. I also suggest only display settings for a whole stop ISO, to facilitate comparison.
Please advise if the photos were shot in RAW, JPEG, what picture style, which noise reduction, which sharpening.
Dear great Teacher Mr. ajfotofilmagem.
Yes, Sir, I just crop and reduc size the original photos as you recommend, With out Post processing.
Yes, Sir, I have learn a lot of new knowledge from you to day, Thousand thanks, Sir.
Surapon
Dear friend Surapon.
Yes, we can now clearly see the noise difference in different ISO settings. I would prefer compared to ISO 100, 200, 400, 800, 1600, 3200, 6400, 12800 for a more complete result. But you already have a very fair test. Thank you.

13
Lenses / Re: 60d lense options ?
« on: November 23, 2014, 08:32:20 AM »
Really depends on your usage.
As for image quality Canon 15-85mm is better than the 18-135mm STM, which in turn is better than the non-STM 18-135.

Sigma 17-50mm is a good lens, but 18-35mm is much better (if not AF problems).

14
EOS Bodies - For Stills / Re: ISO TESTING, BY STUPID METHODS
« on: November 23, 2014, 04:29:01 AM »
Dear Teachers and Friends.
Yes, I want to test the night time photos of the black sky, to see the Noise = Yes, I can see them of the Higher ISO.
Camera, 7D MK II, Lens Tamron (15 years old ) 11-18 mm. F/ 4.5-5.6  SP AF ASPHERICAL Di II LD IF, Set Camera at AV mode at F= 8.0, Set Lens at Manual Focus at Near infinity.
After that, Set IS , start from 100, to the highest ISO of this Camera.
Just Low tech Test in my Idea, Yes, On the medium Tripods, and use Self Timer for minimum Vibration.
Enjoy.
Surapon
Dear friend Surapon. This second test has less environmental variables, and the result is more scientifically repeatable.

To make viewing easier noise, I suggest making a crop from the original 20 megapixel, with the central area of the image (the car and the wall of stones) with resolution 1200x800 pixel. I also suggest only display settings for a whole stop ISO, to facilitate comparison.
Please advise if the photos were shot in RAW, JPEG, what picture style, which noise reduction, which sharpening.

Thanks for your time and work. :)

15
Photography Technique / Re: Extreme macro question
« on: November 23, 2014, 04:05:59 AM »
To take seriously above 1X Macro, Canon MP-E65 is the safest choice, although it is expensive and difficult to handle.

You can spend a lot less with extension tubes, keeping in mind that:
Macro lens like 105mm request long tubes, as a set of three pipes simultaneously.

Lenses like Macro 180mm ask very long tubes, but allow a greater distance to the object photographed. In this case, you could use several sets of three tubes simultaneously, or make a long tube with water pipe and the front and rear bayonet.

Pancake lens will have a dramatic increase in magnification with a set of three tubes.

Search videos on Youtube to see these options I mentioned above.

Pages: [1] 2 3 ... 72