NEWSLETTER APRIL 2017

FORTHCOMING PROGRAMME  

May  9th    Monthly Competition - Wrecks
                   Presentation - Diving Norway - Kirsty Andrews

June 13th  Monthly Competition - Symbiosis
                   Presentation - Alex Tattersall

NEXT EVENT

Tuesday May 9th:    Monthly Meeting

The Meeting (start time 2000hrs) will be at our normal venue - The Casson Centre, Rodway Road, Patchway, BS34 5DQ (map)  It is  easiest to access it via Durban Road, off Highwood Road. The Casson Centre is the left hand part of the Patchway Community Centre, immediately next door to the Patchway Town Council Offices. There is off-road parking adjacent to the Centre and further spaces along  Rodway Road, near to the local Spa shop.

The monthly competition theme is 'Wrecks'. If you are unsure about the theme then contact Arthur, otherwise send your digital files to Peter by midnight on Sunday May 7th. Unsure about entering? Even if you don't feel you have any winners, send some in to benefit from the audience feedback - it's an ideal way to learn.

Simon Yates and Trevor Rees are liasing on a presentation covering their respective Olympus 4/3rds systems and it is hoped that it will be ready for this Meeting - Update - Simon is now unavailable due to family matters so we will have this presentation later in the year. Instead, Kirsty Andrews will give a presentation on her recent trip to Norway.

RECENT EVENTS

April  Meeting

Monthly Theme Competition - Animal Portrait

There were only 17 entries for this competition which was a surprise as it is normally a popular theme. As is often the case, some fine images were disregarded as they did not fit the theme - as far as the audience was concerned.

In equal First Place with 3 votes was Arthur Kingdon with this image of a John Dory shot on a night dive off Chesil Beach.

Also equal First was Jean Michel Machefert with this image of a blenny.
Two images tied with 2 votes each, both by Becky Drayton - a hairy frogfish from Lembeh ....
..and stingrays from Grand Cayman.

Two images with 1 vote:

Mark Drayton with a pygmy seahorse from Dumaguete..

..and Gill Marsh with a seal pup from Lundy.

This image did not project so well, giving the impression that it was blown out which it certainly is not, otherwise I am sure it would have scored more highly.

 

Image of the Year Results

The winning images of our monthly competitions in 2016 were judged by Dr Alex Mustard. There were a total of 16 images, including Equal Firsts, and Alex provided a commentary which was both entertaining and insightful. The top ten were as follows:

1st - Will Clark  (Tiger Shark Spin - Creative in Camera - November)

2nd - Kirsty Andrews  (Yarrels Blenny - Fish Portrait - October)

3rd - Paul Colley  (Brown Trout - Best of 2015 - February)

4th - Rob Bailey  (Snappers - Fish Schools - May)

5th - Mark Drayton (OWT - Silhouettes - June)

6th - Jim Drake (St Abbs - Wide Angle - July)

7th - Tamsin Eyles (Blenny eating shrimp - Animal Behaviour - March)

8th - Cathy Lewis  (Jellyfish with Whiting - Animal Behaviour - March)

9th - Trevor Rees  (Puffer Eye - Circles - December)

10th - Cathy Lewis  (Hermit Crab - Crustaceans - April)

Presentation - High Speed Synchronisation - Arthur Kingdon

Users of cameras with a mechanical shutter only (most DSLRs) are usually restricted to a shutter speed in the order of a 1/250th second when using flash. Higher speeds will result in part of the sensor being cover by the shutter curtains as they travel. However, synchronisation at higher speeds is possible with certain camera and flashgun combinations. The flashguns need to be able to fire a series of pulses of light, rather than a single burst, and this is designated as FP (flat peak - not focal plane as sometimes thought).

The usual use of FP flashguns is as fill flash in bright light when a large aperture is desired for minimal DOF. They are not commonly used in UWP but, as Paul Colley showed last month, they can be very useful in certain conditions.

Paul's flashguns were used above water but here is an underwater image using an FP flashgun in a Subal housing. Alex has used a shutter speed of 1/1250th with an aperture of f2.8 and shot into the sun to create the lovely bokeh from a trioplan lens.

In summary: HSS is not high speed flash, it is more like continuous light and any action-stopping is done by shutter speed. The output power is much reduced, so subjects need to be close to the flash or multiple flashes may need to be used.

Recent BUPG Successes

BUPG members featured highly this month in the BSoUP 'Animal Portrait' competition: Becky Drayton took First Place with her hairy frogfish shot, Trevor Rees was fourth with a tompot blenny image while Mark Drayton was fifth with his pygmy seahorse shot. Well done to those three but particular congratulations to Becky.

Keep bubbling.

Arthur

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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