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Luke O'Brien Photography

Luke O'Brien Photography

Photography Gear, Tips and Technique

Long Exposure Photography with a 10 Stop ND

July 15, 2014
Long exposure photography is extremely rewarding visually and involves the use of a massive array of filters and accessories. To start experimenting with extremely long exposures the following items should be added to your kit bag: Accessories required for Long Exposure Photography 1: Neutral Density (ND) filters ND filters reduce the amount of light entering...Read More

Pentax K3 Astrophotography & Interval Composite Mode

February 11, 2014
With the Pentax K3 astrophotography has been given a boost with the “Interval Composite” shooting mode. Interval Composite, as the name suggests, allows you to stack a number of images in camera to produce one single RAW file which contains all the exposures. This is obviously of great benefit when you consider disk-space on your...Read More

Pentax K3 – coming soon?

October 1, 2013
There has been a fair bit of excitement lately in Pentax circles regarding a possible new flagship model called the Pentax K3 which is looking likely to be launched in the weeks ahead. Nothing is certain at this point, although it looks like something will be announced, possibly as early as October 9, according to...Read More

More Pentax Astrotracer shots with the K5/O-GPS1

September 9, 2013
It was quite clear early last night so I had another run with the Pentax Astrotracer unit (O’GPS1). For the most part I looked at the nebulae in Sagittarius but I also focused on the Magellanic clouds before some thicker clouds of a less photographic nature ended the evening a bit earlier than expected… The...Read More

Night Sky & Pentax O’GPS1 Astro Tracer

September 6, 2013
While on Maria Island recently we were treated to an incredibly clear night and I decided to break out the Pentax O’GPS1 Unit and make use of its unique astro tracing function. I have posted in detail about this feature in a previous post, but in a nutshell, the feature utilises the cameras in camera...Read More

10 Stop ND Filter & Landscape Photography Part II

April 29, 2013
Regular readers will no doubt recall my post about the B+W 10 stop ND filter a few weeks ago. This weekend Hobart copped some wild weather including some incredible winds so I decided to give the filter another go while the clouds were moving fast and the effect of the filter should be most apparent....Read More

Astro Photography – Pentax K5 & Astro Tracer

December 6, 2012
I recently purchased the Pentax GPS Unit O-GPS1 for the Pentax K5, which as well as providing GPS functionality contains a rather handy little feature called “Astro Tracer”. This feature takes full advantage of the K5’s in camera shake reduction feature to literally rotate the camera’s sensor in time with the earth’s movement – as...Read More

Photographing Tasmania: Part 1 – Hobart

March 23, 2011
Photographing Tasmania – Hobart Tasmania, as Australia’s smallest state is a great travel and photographic destination. Nowhere else in Australia offers such a rewarding variety of scenic landscapes in a small(ish!) area as Australia’s island state. From towering sea cliffs in the south east; beautiful blue seas and calm, inviting beaches on the east coast;...Read More

Bushwalking and Landscape Photography

March 21, 2011
Tips and Preparations for Photography and Overnight Walking It is such an obvious statement that it almost redundant to say it, but if you want to photograph landscapes, wilderness, mountain sunsets and so on, then you are going to have to pack your gear and walk for hours or days, just to get into location...Read More
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