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Messages - heptagon

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EOS Bodies / Re: 70D and Dxomark....
« on: August 30, 2013, 05:00:50 PM »
This forum feels like being caught in a loop, the same arguments repeated over and over again...

Reviews / Re: Which camera should I buy for a first timer
« on: August 11, 2013, 05:50:24 AM »
T2i and T3i have the same sensor. T4i adds in mediocre live view phase detection focusing.

T3i has video zoom (1:1 pixel video instead of line skipping) which some people like to use.
T3i has better phase detection AF compared to the T2i (can't remember exactly what but i think center point is same but outer focus points are better).

I don't think you'll need any feature the T4i provides. The 70D could prove worthwile but it's not out yet.

Magic lantern could be useful for learning because it offers you deeper control of the camera.

I'd get the T4i with the two kit lenses. They are not very good but you have every focal length 18-250mm covered and can add a decent prime to that (31mm would be 50mm full frame equivalent).

Lenses / Re: TS-E 90mm f/2.8 Replacement Info [CR1]
« on: August 10, 2013, 06:33:44 PM »
I've been playing around a bit with the TS-E 90 + 13+21+31mm Extension + 2x Extender and I got modestly sharp results at 5° tilt (more would have been unsharp) and could take a photo from a 10 degree angle. That was just enough to keep the lens (without hood) out of the reflection of a flat surface.

The reason for the low angle at the high tilt is in the short focusing distance (relative to the focal length of the lens, so a longer lens will not help here). When the Scheimpflug angle is 90° for infinity focus it's almost flat for a macro photo.

It would be great to take a 1:1 macro photo of a flat surface from a 45° angle but that would require much more tilt and the current lenses become very unsharp at large tilts when used with extension tubes.

So maybe a special lens design with a fixed large tilt would be possible but that would only be useful in a few macro scenarios. Still i'm curious what the macro tilt design is they may present.

Reviews / Re: Which camera should I buy for a first timer
« on: August 10, 2013, 12:44:45 PM »
go cheap.. it will show you what is important to you and then revisit in a year or two....

This! If it has manual focusing and manual exposure you can start to learn with any camera.

Lenses / Re: TS-E 90mm f/2.8 Replacement Info [CR1]
« on: August 09, 2013, 09:19:13 PM »
In order to become useful for macro photography we need much more than 8.5° tilt.

Lenses / Re: Canon EF 100-400 f/4-5.6L IS Update [CR2]
« on: August 06, 2013, 12:51:49 PM »
Holding back the 100-400 for the 200-400 1.4x doesn't really make sense to me because the latter is so much more expensive.... except if the new 100-400 costs 5000$ upwards. But then again it wouldn't really replace the old model. So something about this sounds fishy if you ask me.

EOS Bodies / Re: Canon 70d RAW Samples
« on: August 05, 2013, 03:28:19 AM »
But how does it look like when comparing ISO 100?

Lenses / Re: Lens flare.... I want it! :)
« on: August 03, 2013, 05:17:57 AM »
Buttercoat your filter from side which goes on the lens. Just stick your finger in some butter and then smear some grease on the filter (just a thin film). You can try to go in circles or from the inside out or even make some wavy structure. If you shoot with a tele you can clear the center again with some cloth dipped in alcohol. Enjoy.

Lenses / Re: Question about TDP's sample crops
« on: August 03, 2013, 05:07:37 AM »
I suspect that TDP only focuses at the center and doesn't refocus for corners or edges so just a trace mis-alignment, like a paper thin one, and....

As far as I know they do separately focus for every spot, repeat the test more than once and take the best result for each.

Besides thin DoF there is field curvature on a few lenses which makes it impossible to get a flat screen in focus.

Lighting / Re: Battery Mystery
« on: June 02, 2013, 04:46:45 PM »
Neuro, that could check out. The flash draws such a high current that the voltage of one battery breaks down completely and it's in short circuit or reversed. Then the chemistry of that battery breaks down really fast and it goes bad. Luckily it didn't explode or catch fire.

Lighting / Re: Flash that will endure over 2000 continuous shots?
« on: June 01, 2013, 06:26:00 PM »
i've heard pretty good words for the nissin mg8000
however you'll need a battery pack for sure.

why not continuous lighting?

I have tried regular lamps next to books for shots, but they come out worse than with what I can get with a flash. With flash, the pics come out very nice and clear.

Do you have a link to continuous lighting products that you recommend?

You might want to provide extra details on what exactly you do. A static scene should be perfectly sharp using long exposure and any static light.

Except if it's not really static or you do something wrong to generate/catch vibrations with your camera setup...

The 2x only makes sense if your target is too small to fill the frame on 200mm with the 1.4x on a crop camera.

Pricewatch Deals / Re: Canon EOS M w/22mm f/2 STM $399 New
« on: April 12, 2013, 02:46:07 PM »
Are they starting to sell of their stock for something new?

EOS Bodies / Re: EOS 7D Mark II Test Camera [CR1]
« on: March 28, 2013, 08:03:32 AM »
If DR improvement is not mentioned it won't happen, so we shouldn't expect it or speculate about it. Same sensor as the 650D but smaller (more noisy) pixels, faster readout, better AF and Body. I'd call this camera a 6.5D.

Would you as a landscaper be disappointed if it only had ISO100, no VF and no Phase-AF?

Could you use ISO25 if it gave you more DR?

Is the Live-View-AF of the EOS-M sufficient for your studio shots?

If you are OK with all these, the new Camera would be the ultimate mirrorless resolution and DR monster which doesn't compromise with general usability wich already is provided by the 1Dx.

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