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Topics - Shawn L

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Lenses / Shooting straight down with 24-70 mm II -- possible?
« on: November 11, 2012, 04:27:58 PM »
Testing out a new 24-70 II (after running it through Fo-Cal three times, thanks again for everyone who helped with that :)), and some of the photos are sharp. But those where the camera is steeply angled down, often aren't.

Is that expected? Do others see the same thing?

I don't notice any lens creep, but could it be so miniscule that I wouldn't?

Sorry for my ignorance :/


Shawn L.

Lenses / New 24-70 II, maybe AFMA will help?
« on: November 08, 2012, 12:13:59 AM »
Just got a new 24-70 II and I must say that my initial images are, well, disappointing. I was hoping for something along the lines of the ridiculous sharpness of the 70-200 II. Sadly, what I'm seeing is much closer to my 28-135.

If you look at this .cr2 file in DPP (, you'll see the focus point is the white and purple cluster of flowers. However none of the flowers in that cluster are what I would consider remotely sharp -- this was taken at 70 mm, 1/320 sec, with f/2.8, ISO 100. With those, I don't think it's the lack of IS.

All of the photos I've taken are like this, without regard to shutter speed (even up through 1/2000 @ f/2.8 (ISO 150)) -- also,  this is actually one of the sharper ones.

Maybe AFMA will help. But I'd (naively?) expect an AFMA problem would mean that something, somewhere in the image would be sharper. I suppose it's possible that there's nothing at the right depth...


Shawn L.

Lenses / 70-200 f/2.8 II + 2X converter versus 100-400 f/4.5-5.6
« on: October 20, 2012, 11:44:42 AM »
I rented the 100-400 mm for a trip to the San Diego zoo, and thought it was a really nice lens. In terms of utility, though, I'm not sure I have a day-to-day need for it (though need & want aren't always correlated).

As I already own the 70-200 F/2.8 II, I'm wondering if getting the 2X converter is a viable option.

I believe Neuro has previously written that the quality of the 70-200 + 2x is comparable with that of the 100-400. Does anyone have any experience with how fast/accurate the AF when compared?

Moreover, has anyone made this decision before and either been really happy with it or wished they'd made a different choice?

Thanks :)

Shawn L.

Canon General / Any recommendations for how best to use an Arctic Butterfly?
« on: September 26, 2012, 11:12:31 PM »
A bought an Arctic Butterfly (724 SB) to rid my camera of the Canon-supplied extras it shipped with (really, they couldn't clean this before shipping it!?). I seem to have successfully moved the dust particles around on the sensor, but I'm not sure I've removed any of them.

I've made two passes, both dry. Would getting some cleaning solution on the bristles help? Or are two passes too few (do I need more patience)? Is there a different product I should try, instead?

As I'm completely new to this, any insights, comments, or suggestions are most welcomed :)


Shawn L.

1D X Sample Images / Space Shuttle Endevour over where I work
« on: September 22, 2012, 11:20:40 AM »
Captured this yesterday with a Canon 1DX and an EF 70-200 mm f/2.8 II
1/800 sec, ISO 100, f/7.1

1D X Sample Images / San Francisco Zoo
« on: August 11, 2012, 05:07:12 PM »
1/160 sec, f/3.2, ISO 250, 130 mm -- wish I had 1/500 sec (or less) and 200 mm (so I didn't have to crop so much)

I was lucky to get this at all since it happened at the speed of a humming bird.

EOS Bodies / 1DX lock up?
« on: August 04, 2012, 03:54:41 PM »
I think I already know the answer to this, but I wanted to see if anyone else has had their 1DX lock up. I was in the middle of shooting a hula festival and the shutter just went dead. The red "writing" light was on, so I waited about 10 secs, and it never went off. (I wasn't shooting continuously, and I have a Lexar 1000x card, which has *always* kept up.) None of the other buttons on the camera did anything and the LCD on the back was blank.

Eventually, I turned the camera off and back on. Things seemed fine (no images lost on the card, for instance).

Anyhow, I suspect the camera might have a defect and I should return it.


Shawn L.

EOS Bodies - For Stills / 1D cameras for walk-around and traveling
« on: March 13, 2012, 07:00:59 PM »
I was wondering if anyone used their 1D as their walk-around or traveling camera. If so, any concerns with 1) weight and/or 2) its size/shape making you a target for theft?

I've played with the 1D Mark IV, and it's a lovely camera for sports photography. I'm thinking about a 1DX, but if I spend that kind of money, it'll need to be my only camera. When I used the 1DMIV, it was indoors with a monopod. So pretty simple and controlled conditions. I"m wondering about traveling with a 1D sized camera. How does your arm and neck/shoulder feel at the end of the day? Do you do anything to make it less, er, conspicuous, or doesn't that matter?


Shawn L.

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