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Friday, November 27, 2009

Golden Gate Bridge on Canvas

How cool is this? I love having one of my own photos, of a world famous landmark, hanging in my lounge room. And now that I've got it, I have a thirst for more canvas prints to put on the walls around here.

The main reason I haven't done it until now, is that a lot of my favourite photos were photos I'd take of racers at the Motorplex, and if I were to get a canvas of one of them to hang on the wall, it'd feel like I was playing favourites.

Stacked TeleConverter Experiment

For some time now, I've been pondering the concept of 'stacking', with regards to teleconverters for camera lenses. Recently I had the opportunity to borrow a 2x converter to supplement my 1.4x converter, and make this experiment possible.

Other people who had done similar experiments (usually bird photographers shooting smaller targets at longer distances) had reported that the loss of sharpness with the 2 converters stacked, made the exercise almost useless.

This experiment was conducted using a Canon 70-200 f/2.8L (non-IS version) fitted to a Canon EOS 1D Mk III, with a Canon 1.4x TC II and a Canon 2.0x TC II fitted between lens and body. You can only fit the converters one way round, as the rear of the 1.4x is flat, and both the converters have a short nose that fits inside the rear of the lens.

The following photo was not resized at all (it is resized for display here, but I've provided a link to the original image), only cropped down from the 1D Mk III's 10.1 megapixels. As a side note, using 2 converters does screw with the camera's brain a little, the lens seems slightly slower to focus, but still quicker than the Sigma 50-500 that I was comparing the results with. Also, the EXIF info suggests this photo was shot with only the 2x TC fitted to the 70-200L, focal length as a result is reported at 400mm, when it was actually around 560mm.

Experiment with stacked converters


For comparison, here's a similarly treated shot, again, only cropped, not resized (except for display in this post), out of my Sigma 50-500mm (aka The Bigma).

20090419-AM1A1156


My conclusion? Previous photographic evidence by other photographers has shown that stacking converters is probably not a good idea for bird photography, and it's probably something to be avoided where possible, as there is definatley some loss of sharpness occuring, however, when shooting motorsports, which typically involves larger targets moving at speed, the sharpness of the image is sometimes not that critical anyway, as there tends to be a bit of motion blur even at higher shutter speeds.

Would I do it again? Probably, if I had the gear at my disposal.

Would I use stacked converters over a Canon 100-400L with a 1.4x TC? Probably not, but I don't have a 100-400L or a 2x TC, so this is a bit of an irrelevant question.

Would I use stacked converters over my Sigma 50-500? I don't know. The results are close, but the winner for me has always been the Sigma's ability to zoom all the way from 50mm to 500mm, and perform pretty capably all the way through. However, the reason I'm thinking about this at all, is because my Sigma is failing, and I'm not sure it's worth repairing or replacing with another Sigma lens.

Pricing Details for HighOctanePhotos.com

I get quite a few people asking me how much my photos cost to purchase, so in part for them, and in part for me so that I have a ready available price list to check myself against when needed, here are my current prices.

(This price list is constantly evolving in order to maintain the best balance between quality and price for our customers, while keeping the price list simple)

Digital Images: High Resolution jpeg files, ready for printing or further manipulation - includes limited usage license. (In short, ask before using these photos for commercial gain) - Price varies based on quantity only.

Number of Photos - Price Per Photo - Total Price

1 photo - $50 - $50

2 photos - $40 - $80

3 photos - $40 - $120

4 photos - $40 - $160

5 photos - $35 - $175

6 photos - $35 - $210

7 photos - $35 - $245

8 photos - $32.50 - $260

9 photos - $30 - $270

10 photos - $30 - $300

Printed Images: Prints are available in a number of sizes and on a number of different materials, but for the purposes of the price list, a number of prices for unframed paper prints will be given, with a single price for a stretched canvas print given as a comparison. These images are sold with a more restricted license than the High Resolution Digital Images, namely that no reproductions of the images may be made. Images may be sold for profit, but you cannot replicate them in order to do so. Generally, there are no pricing discounts for buying multiple images.

Paper Prints (Not Framed or Mounted)

8" x 12" - $50

11" x 14" - $75

12" x 16" - $100

12" x 18" - $110

12" x 20" - $110

16" x 24" - $150

Shipping costs are not included in the price and will vary depending on the size and number of prints.

Canvas Print (example price)

Size: 32" x 20"

Price: $500 (shipping may be extra due to the size of the print)

Time required: 4 weeks

Thursday, November 26, 2009

New Post - New Blog

Yay! Another blog....

I know I've got about 20 blogs already that I use, and most of them get ignored pretty quickly... The one I've had the most success with so far is livejournal (http://landbarge.livejournal.com/), and I still use that...

Anyway, I've decided to give blogger a go, so will have a bash at this one over the next few days/weeks/months and see if I can stick to it...

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