September 19, 2014, 10:25:08 AM

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Messages - pdirestajr

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46
Having fun with my kid's new trampoline (Shot a second image of lawn without trampoline, then merged images).
Flying Fairy by Philip DiResta, on Flickr

47
Lenses / Re: Canon EF 16-35 f/4L IS Sample Images
« on: May 17, 2014, 04:46:30 PM »
Just FYI, you can see a full-resolution jpeg of the samples by clicking on:  (点击此处查看大图)  located directly below each image.
-brought to my attention by Bryan over at TDP.
Doesn't look very sharp in the corners (photo of the white house and the church). Or am I a pixel peeper now and does it look better than the 16-35 f/2.8 II?

This new lens seems pointless to me - it's even longer than the f/2.8II and weighs almost the same. The 17-40 is the hands down winner for travel and portability in general. If I'm going to lug a WA that big, then it better have a 2.8 aperture.

Totally disagree. I could care less (grammar police, using this in the NEW accepted form so shhhhh :D) about f/2.8 for this range. IS matter a lot more as does raw image quality.

Wouldn't it have just been faster to make it "couldn't" instead of going through the whole disclaimer?!

48
The EF-S 10-18 sounds like it might be a budget/ plastic mount lens to go with the 18-55 & 55-250 IS STM lenses.

Remember that every lens isn't for every person- before there are countless threads about the downfall of Canon and their lack of innovation.

49
Canon EF Prime Lenses / Re: Canon EF 50mm f/1.8 II
« on: May 07, 2014, 10:04:50 AM »
Haven't had or used a 50mm in years (mostly a 35mm/ 85mm shooter), but after all the latest 50mm hype from Zeiss and Sigma, I decided to "invest" 70 bucks in this gem during Canon's recent refurb sale.
Ask me if I care about corner sharpness...

Picking Dandelions by Philip DiResta, on Flickr

Dandelion Wish by Philip DiResta, on Flickr

50
Sports / Re: Horses / Horseriding etc
« on: May 07, 2014, 09:44:37 AM »
I went to Belmont Park over the weekend to have a picnic with friends and family. Decided to test out my new 1.4x extender on the 70-200 2.8II. Pretty nice results- Especially considering I was shooting "sports" with a 5D mkII. This was the only horse race I shot that day, so was happy I caught a few cool frames as they passed me.

Belmont Park | Race 7 by Philip DiResta, on Flickr

5 Horse by Philip DiResta, on Flickr

Horses by Philip DiResta, on Flickr

51
Canon General / Re: My weapons of war.
« on: May 04, 2014, 11:53:44 PM »
I'm confused, what is the war these weapons are being used for?

52
I think you guys are missing the big "A" on the side of these lenses... for ART! Perhaps the focus issues are for artistic effect!

53
Lenses / Re: Review: Sigma 50mm f/1.4 DG HSM Art Lens
« on: April 22, 2014, 07:03:43 PM »
I'll wait for Canon to release an awesome and cheap 50mm 1.8 IS lens. I have a hard time dropping money on a 50mm lens for some odd reason.

54
Canon EF Zoom Lenses / Re: Canon EF 70-200mm f/4L IS USM
« on: April 19, 2014, 10:36:55 PM »
Just recently picked up the 1.4x III Extender so was testing it out. Pretty good results!
Smelling Flowers by Philip DiResta, on Flickr

Dolly by Philip DiResta, on Flickr

55
EOS Bodies / Re: 1d IV vs. 7D II
« on: April 17, 2014, 02:30:44 PM »
Just get a Pentax K-3 and call it a day.

56
Speedlites, Printers, Accessories / Re: Speedlite Tutorials?
« on: April 11, 2014, 11:13:43 AM »
I will do. Tomorrow, it is 11pm here. I am just reading the PhotoNotes article posted above. I'm guessing that the limited SS range setting on my 5D only applies when the flash is on, not all the time. It is in the Speedlite settings page. I will experiment. I certainly wouldn't want to neuter my available light Av settings.

I would use M mode but I find there are already too many settings to keep track of - see my 'needing a flash as all my photos have motion blur (because I set ISO to 100, not Auto)’  post at the beginning of this thread.

I think you also need to understand the fundamentals of an exposure.
You had motion blur because your shutter speed was too slow. Yes, raising the ISO will increase your shutter speed, but you NEED to be looking at all of your exposure data to understand why you are getting the results you are getting.

Aperture + shutter speed + ISO = exposure.

The great thing is you are using a digital camera- so you can look at the back of your screen and experiment!

57
Lenses / Re: Philosophical question about Sigma Lenses - Why?
« on: April 04, 2014, 10:34:51 AM »
"I have no opinion for nor against Sigma. I’m only interested in their original business model and how the founders of the company came to the conclusion of making lenses for other camera bodies out of pure academic curiosity."



3rd party accessories is a standard business practice across all consumer product categories. This is not unique to Sigma or the lens/ photography market.

Where there is a market, there will be competition to get a piece of the pie.

You have the products/ accessories from the OEM (Original Equipment Manufacturer) that set a price. Then 3rd party manufacturers can offer more "cost effective" alternatives, or fill holes in the market by offering unique products not offered by the OEM.

Sometimes a cheaper product isn't even inferior to the original, but they can undercut the MSRP because they have a smaller advertising/ marketing budget, inferior customer service, or are using "open market" parts, or they can operate on making a smaller margin, etc...

Sigma can also reduce the cost of production because they create products for multiple mounts. This increases their MOQ (minimum order quantity), which helps drive down manufacturing costs.

There is a lot more that goes into the cost of a product than just cost of goods.



59
Welcome lemmeKS! Nice shots- post more!!!

60
Animal Kingdom / Re: What is this bird?
« on: March 21, 2014, 11:02:49 PM »
Appears to be a red-tailed hawk (although I'm viewing this on my iPhone).

Thanks!

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