September 02, 2014, 04:09:11 AM

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Messages - dryanparker

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1
Street & City / Re: Your best street shots of any kind.
« on: August 13, 2014, 09:10:49 PM »
I once came across a parkour group in downtown Jacksonville. One of them was falling from the sky.

Mamiya RZ67, 75mm Shift Lens, Tri-X 400

2
Canon General / Re: Another Canon Medium Format Mention
« on: August 11, 2014, 11:20:44 AM »
Would Canon benefit from offering some kind of product similar to the Leica S? Not a "full-blown" MF system to compete with Phase One or Hasselblad, but still something larger than 35mm?

I'm just not sure of the benefit given 35mm sensors now boast amazingly high resolution. The quality of the pixels is what Leica sells in their S body, given its comparatively modest resolution for a MF system. The leap in quality undoubtedly exists in the lenses.

Interesting play on Canon's part...

3
Canon General / Re: Who's on Instagram?
« on: August 08, 2014, 10:55:40 AM »
I use LinkedIn and Instagram quite heavily, and to a lesser extent Twitter.

Instagram has a lot of garbage on the platform, but a ton of really great stuff too. Much of the clutter is a result of people trying to monetize it. Indeed, a lot of "social media celebrities" have somehow amassed enormous followings (usually for alarmingly superficial reasons) and sell posts with product placement, brand mentions, etc.

I have a modest following, mostly friends and other photographers, and I use Instagram to share a mix of my "real photography" and everyday iPhone photos. I love the platform.

www.instagram.com/dryanparker
A fellow Floridian - I have followed you as well, and I agree with your thoughts on the platform.  I like your mix of photos and I love that custom case you kept your RZ kit in - I hope you got some decent cash for the set.

Thanks! Followed you too, Ian. Lovely nature photos, and I see a lot of familiar North Florida scenes!

I loved the RZ, but it was time to go back to digital. I'll eventually get back into medium format, too. It taught me a huge amount, and I have a binder of killer negatives that I'm proud to have made.

Unfortunately, the RZ gear was sold at a pretty substantial loss, but I got great enjoyment from it, and that goes a long way with me.

4
Canon General / Re: Who's on Instagram?
« on: August 08, 2014, 10:38:28 AM »
I use LinkedIn and Instagram quite heavily, and to a lesser extent Twitter.

Instagram has a lot of garbage on the platform, but a ton of really great stuff too. Much of the clutter is a result of people trying to monetize it. Indeed, a lot of "social media celebrities" have somehow amassed enormous followings (usually for alarmingly superficial reasons) and sell posts with product placement, brand mentions, etc.

I have a modest following, mostly friends and other photographers, and I use Instagram to share a mix of my "real photography" and everyday iPhone photos. I love the platform.

www.instagram.com/dryanparker

5
Animal Kingdom / Re: Show your Bird Portraits
« on: July 21, 2014, 05:06:16 PM »
5D2 + 24-105L

Admittedly, it's not really a portrait. I've just always enjoyed these two.

6
I just was looking in my 5DmkIII manual to see where it says you can't print larger than 32x48. Can anyone direct me to the page that says that? I can't find it. Thanks for the help in advance.

+1

I love when people complain about not being able to print "larger than AxB". How often are we really printing anything larger than 36x24? I've printed that size with amazing detail from the 7D. I'm sure you could print 40x60 from a 5D3 with fantastic results. Larger artwork, just like larger TVs, are really meant to be viewed from greater distance.

Obviously, there are limits. You definitely don't want to be printing posters from iPhone photos...which I've seen...IN GALLERIES!!

But, these late model cameras are more than capable of beautiful prints at most reasonable sizes.

7
Animal Kingdom / Re: Show your Bird Portraits
« on: July 06, 2014, 02:23:57 PM »
5D2 + 24-105L

brilliant, great photograph great humour

Thanks @zim!

8
Animal Kingdom / Re: Show your Bird Portraits
« on: June 30, 2014, 09:59:10 PM »

9
Animal Kingdom / Re: Show your Bird Portraits
« on: June 30, 2014, 02:38:39 PM »
5D2 + 24-105L

That is a real cute photo!

+1

I really like this picture. Nicely done dryanparker.

Hey thanks, @Click and @candyman! I call this "Chatting Sea Birds". It's one of my personal favorites.


10
Animal Kingdom / Re: Show your Bird Portraits
« on: June 30, 2014, 11:20:31 AM »
5D2 + 24-105L

11
5D2 + 24-105L

12
Landscape / Re: Astrophotography - which camera?
« on: April 11, 2014, 09:01:58 PM »
It's often easier to do these things in arcseconds. The ISS is ~63" (arcseconds) long. We can compute the number of arcseconds/pixel ("/px or asp) using this formula:

Code: [Select]
(206.265 / focalLength mm) * pixelPitch ┬Ám
For the 7D and a 200mm lens, our asp is (206.265/200mm)*4.3 = 4.43asp. For the 5D II and a 200mm lens it's (206.265/200)*6.4 = 6.6asp. If we take the 63" length of the ISS, and divide it by our sensors arceconds/pixel ratio, we get ~14px for the 7D and ~9.54px for the 5D II.

Now you can slap on teleconverters to get longer focal length. The 7D will suffer from the effects of diffraction and less lignt sooner, meaning the 5D II will then be more capable of using a longer focal length with a teleconverter, or for that matter stacking teleconverters (you can stack in a number of ways...2x III + 1.4x Kenko, 2x III + 25mm ext tube + 2x TC III, etc.) Let's say you use a 2x TC on the 7D and two 2x TC's on the 5D III. The 7D and 5D II are going to be producing roughly the same noise, and diffraction softening will be roughly equal (slightly more on the 5D II):

7D: (202.265/400)*4.3 = ~2.2asp
5D II: (202.265/800)*6.4 = ~1.1asp

We have a roughly equivalent IQ case here (similar amount of noise), but a much longer focal length on the 5D II. The ISS is 28px large on the 7D, but 57px large on the 5D II. Since we are talking about highly collimated light, all you need to do really is manually focus in the stars or the moon...so you could, theoretically, stack as many teleconverters as you think your pixels will handle. The larger pixels of the 5D II will handle more than the 7D before you start achieving similar results on both (diffraction blurring will eventually reach a point where the ISS is blurred the same mount on both if you just keep stacking TCs, and the 7D will simply be oversampling that blurry image more than the 5D II, albeit with more noise.)

Yes, definitely arcseconds. Couldn't agree more.

Wizardry alert. :)

13
Black & White / Re: The TRI-X 'look'...
« on: March 07, 2014, 03:37:07 PM »
I once came across a parkour group in downtown Jacksonville. One of them was falling from the sky.

Mamiya RZ, 75mm Shift Lens, Tri-X 400

14
Can someone please do the following:

1) Explain how these eBay stores can offer a 5D3 for $500 less than amazon and other retailers, and

2) Reassure me that it's exactly the same as buying from the bigger retailers (valid warranty, etc)

Thanks!

15
EOS Bodies - For Stills / Re: Canon 5d Mark ii ebay advice
« on: February 06, 2014, 02:01:42 PM »
Do not even think about buying it.

+1

Walk...not worth it!

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