Andrew McCarthy Photography

Andrew McCarthy

Photographing bats in flight with Olympus micro four-thirds

I have held a licence from Natural England* to survey and photograph bats since 2001, but for various reasons I had never fulfilled my long-held aspiration of photographing these nocturnal, fast-moving and unpredictable creatures in flight until 2020.  Lockdown in spring of last year provided me with the time and opportunity to make a start on this long-anticipated project.

Fortunately, I have a ‘night roost’ for small numbers of the nationally rather rare Lesser horseshoe bat at the rear of our Devon house, so I had the perfect location for initial experimentation.  After extensive research, I found that the simplest photographic technique would be to use a laser beam-type trigger to fire multiple flashes, whilst the camera shutter remained open.  This would avoid the problem of shutter lag (during which time a bat can fly an unpredictable distance past a pre-set focus point).  By trial and error I found that repeated 30 second exposures throughout the night were fine for our house roost, since the small number of bats present meant there would be minimal risk of a frame capturing more than one animal per shot (many bats passing through the frame could result in ghosted images).

I moved from Canon full frame to Olympus in early 2018 for my wildlife work, and at the beginning of the project I had reservations about whether the Olympus M43 sensor – good though it undoubtedly is – would be up to such a demanding task as high speed night-time photography.  Whilst I did have to understand and work within the capability of the M43 sensor, and whilst some images required very careful processing to control occasional noise in the shadows, I was pleased to find the Olympus system is more than capable of capturing great bat images, as I hope you will agree.  For the images in this blog entry I used a tripod-mounted Olympus EM1x camera coupled with short zoom lenses (including the Olympus 7-14mm f2.8).  The images were lit with speed-light flashes fired directly by a laser beam trigger (or manually when flashes were set to ‘strobe’ mode). 

My biggest challenge at the outset was pretty basic – how to focus accurately?  Taking into account the fast response time of my laser trigger (around 10ms) and the estimated bat flight speed (determined from research papers as between 3ms-1 and 5ms-1), I estimated that pre-focusing 1.5cm beyond the beam would take account of the likely distance travelled by the bats before the flashes fired.  The other potential issue was battery life.  I found after initial experimentation that when shooting continuously, the EM1x with fully charged batteries would run for around 5.5 hours.  Therefore, by switching the camera on around 11.00 pm the system would run until just after dawn.  This was perfect for capturing bats using the roost during the night since they would leave to return to their nearby main roost well before sunrise anyway.  Later in the project I invested in an adaptor and power pack so the equipment could be switched on much earlier in the evening, allowing an easier and more consistent setup during daylight hours.

The first few weeks were disappointing and frustrating in equal measure – most exposed frames were dark, and whilst a few shots contained bats, most were out of focus or had part of the animal out of frame.  However, by incrementally adjusting camera framing and settings, by gradually adjusting flash settings and flash head position, and by experimenting with focus point positioning, I gradually began to get improved results.  This nightly trial and error (which included a period of six weeks when I experienced technical challenges with unsynchronised flashes and image ghosting) finally enabled me to establish a consistent system of photographing emerging bats, as well as of bats flying through nearby wooded vegetation.  I eventually settled on the following settings for the non-strobe bat shots – ISO 640, a 30 second exposure (with the camera set to continuous shooting) at f10, with five flashes at 1m distance from a pre-set focus point of 1.5cm from the laser beam.  All flashes were in manual mode at 1/16th power to give an ‘effective shutter speed’ of around 1/8000th of a second (i.e. sufficient to stop in-flight action).

In summer 2020 I also began to experiment photographing bats foraging in open habitat (initially around our garden) using a mobile setup with the EM1x on a tripod coupled with a pair of bracket-mounted flashes set to ‘strobe mode’ (usually around seven pulses, at 14 pulses per second).   I found that an ultrasound bat detector was an invaluable aid in helping to determine when the bats were approaching, and thus when was the appropriate time to press the shutter button to capture individuals passing across the frame.  Whilst this is a more interpretive style of photography, I think it does give the viewer a sense of how bats really fly and forage.

The cooler nights of autumn saw a reduction in bat activity and so I called a halt to the project until 2021.  Although there is great deal of room for improvement in my images, I have been pleased with progress so far.  Hopefully 2021 will see further progress, with more and better images from a wider variety of species!

*Note on legislation and licensing: Whilst research indicates that bats are unlikely to be disturbed providing that flash power settings / durations are kept very low, all photography for this project has been undertaken under the appropriate Class II licence from Natural England, which I have held since 2001.

New ‘Super resolution’ function in Photoshop

I was playing around last night with a new function in Photoshop that significantly increases resolution of the original RAW file – effectively by four times. It is very simple to use. I loaded the raw file (in this case an infra-red shot from the Sony A7 III of a nicely lit birch tree) into Adobe Camera Raw, right clicked on the image, checked the “Super Resolution” box a few minutes later I had a new file in DNG format that was four times the area of the original. In other words instead of a file that was just over 4000 px on its long edge, the new file was now over 9000 px on its long edge! That is a huge file which needs a fast PC to handle it – mine (which is around 6 years old) was only just about capable.

Now look, I am a skeptic, so I simply assumed this new file would show artifacts and overall there would be a degradation of image quality. Not so. To me this new ‘super resolution’ version was higher quality than the original, with superb detail and no artifacts I could see. Its incredibly impressive. Although I have more experimentation to do, I am really impressed by what I have seen so far. I can see some mega useful applications here – e.g with wildlife (especially birds) the subject is often smaller in the frame than I would like. This new function will give me the ability to re-size, process and crop back, whilst retaining great image quality and with a final file size large enough to print really well.

More on this soon! 😀

Residential Nature and Landscape Photography Workshop in North Devon – 26th to 29th July 2021

Join experienced photographers Andrew McCarthy and Ken Pearson on a residential photography course based at the stunning Westcott Barton estate, near Barnstaple in North Devon.  The workshop is aimed at ‘improver’ photgraphers who want to get to grips with nature (in particular macro) and landscape photography, as well as improving their digital processing skills.  The workshop is fantastic value – you will have over two full days of teaching and all accommodation and food will be provided.

The workshop starts on the evening of Monday the 26th July 2021 with a presentation by Andrew McCarthy, a professional ecologist, conservationist and nature photographer, who will give you an overview of the camera settings / techniques you will be using during the workshop.  Over the following two days we will be shooting in the lovely grounds of Westcott Barton, where there are many opportunities for macro wildlife photography of plants and insects, as well as traveling further afield in search of interesting wildlife, landscapes and seascapes along the stunning North Devon Coast. 

Whilst our schedule will be flexible in order to make the most of the weather, we will be demonstrating a range of digital processing techniques during the workshop.  We recommend the popular and widely-used  Adobe Lightroom Classic, and will take you through the basics of file importing, indexing and processing using this software.  If time allows we will slot in a critique session.

Andrew will also give a demonstration each evening of his equipment setup for night-time bat photography, as habitats at Westcott Barton are perfect for these animals, with plenty of insect-rich habitat present, especially along the stream and around the old ponds.  He will set up his camera alongside the stream to hopefully capture bats passing along this feature on their way to feed in nearby pastures.  Please email Andrew for more details if you are interested in this fascinating field of photography during the workshop.

The course finishes after breakfast on Thursday the 29th July, weather permitting after an early morning session in the grounds of Westcott Barton, where we will make the most of our last ‘golden hour’ . 

Equipment requirements:

A DSLR or Mirrorless camera together with a macro lens (or extension tubes/close-up diopter) for insects and plants, as well as a wide angle and telephoto lenses (or a zoom) for landscapes, and a sturdy tripod – preferably one with a removable center column. 

A laptop / computer loaded with your favored processing software would be  very useful. 

Spare memory cards and sufficient batteries to carry you through a full days shooting.

Weather permitting we are hoping to explore long-exposure photography during the workshop, so a polarizer and neutral density filters would be beneficial. 

We have limited kit for hire if you don’t have all of this equipment yourself; Let us know in advance if you have any specific requirements and we will do our best to help.  


We will be working outdoors, possibly in wet conditions, so appropriate clothing including a waterproof jacket and trousers, are highly recommended.

Late May can be very warm so lightweight clothing, a sunhat, sunscreen, a water bottle, midge repellent and a tick removal tool.

We will need to walk reasonable distances on potentially wet / muddy and uneven ground, so we also recommend stout boots and wellingtons, with a good grip.

Other information:

Nature photography can involve lying on the ground, however this is optional and we have found that the fitness level and mobility required for this type of workshop is not at all onerous.

If you have any queries about your experience level, equipment suitability or our approach to Covid19 security, please contact Andrew to discuss at

Price and venue:

  • Covid-secure room in shared building and amenities – single occupancy – £450.00 per person including meals
  • Shared twin room where both individuals are participating in the workshop – £400 per person including meals
  • Non-participating partners sharing a participants room – £300 per person including meals

For booking and for more information on the venue please contact Westcott Barton directly at

Westcountry Wildlife Center Workshops

Wildlife photography can be extremely frustrating for the beginner. Getting close to even the largest British mammals can be difficult and many of our smaller species can be very hard to find in the wild. Our 1-day wildlife workshop will allow you to get close to your subjects and thus allow you to concentrate on the photography itself.

The workshop will be run by Andrew McCarthy, an experienced and award winning wildlife photographer and professional consultant ecologist from Exeter. We will spend the day at the West Country Wildlife Photography Centre on the Devon/Cornwall border, where a remarkable collection of many iconic British mammals are housed in large and carefully landscaped photographic sets. During the day you can look forward to photographing some of our rarely seen species, including Otter, Fox, Pine marten, Harvest mouse, Water vole, Stoat, Scottish wildcat, and even Beaver, so you will need to be prepared to take home some truly memorable images!

The ability to get really close to the subjects means you can concentrate on honing your camera skills, thinking through your compositions and asking questions.

Andrew will start the workshop by giving a presentation to highlight the key issues associated with taking well composed wildlife images with impact. He will run through many of the common camera settings and will talk you through some of the techniques that you will be putting into practice throughout the day. We will then head out into the grounds to work with an experienced mammal handler to put our ideas into practice.

Ideally you will have, and be reasonably familiar with, a DSLR or Mirrorless camera with a telephoto or zoom lens of up to 300 or 400mm focal length, as well as a shorter focal length lens; say a macro of around 150mm to 180mm for smaller mammals. A tripod and / or monopod may come in handy for fine-tuning your compositions but remember you will have to carry your equipment between the enclosures (a few hundred meters). You will probably take many images during the day, so you will need spare memory cards and sufficient fully-charged batteries!

If you have any queries about your experience level or your equipment, please do contact me and I will do my best to help.

Please bring a packed lunch. Tea and coffee will be available on site throughout the day.

Clothing: We will be working outdoors, possibly in wet conditions, so appropriate warm clothing including a waterproof jacket and trousers, are highly recommended. We will need to walk short distances between enclosures on potentially wet / muddy and uneven ground, so I also recommend stout boots or wellingtons, with a good grip.
Fitness: Photographing some species can involve lying on the ground, however this is optional and we have found that the fitness level and mobility required for the day is not at all onerous.

If you are a camera club member you can book directly through me and receive a discount. Please email me for details:

Dates: Please contact us for availability and prices.

Macro Workshops


Macro photography, especially of insects, can be a really challenging subject for beginners to get to grips with and this 1-day workshop is designed to help you get started.

The workshop will be run by Andrew McCarthy ARPS, an experienced macro photographer, an Olympus Mentor, and recent winner of the ‘Hidden Britain’ category in the 2018 British Wildlife Photograph Awards. 

Andrew will start by going over the target subjects, equipment, typical camera settings and techniques associated with macro photography, after which we will head out to some local sites to put our ideas into practice. In particular we will aim to find and photograph butterflies and other larger insects, but we will also photograph plants and other suitable subjects, depending on conditions. During the workshop, Andrew will demonstrate techniques such as photo-stacking, use of flash and reflectors, and will show you how to stabilize your subjects to maximize sharpness.

Ideally you would have and be reasonably familiar with a DSLR or Mirrorless camera with a macro lens or close-focusing zoom of around 300-400mm in focal length, although cheaper options such as extension tubes or screw-on close-up filters can work really well. A reasonably robust tripod will make life much easier (we may be able to lend you one if you request it in advance) although for some subjects (e.g. fast moving butterflies) we will use hand-holding techniques.

We will be working outdoors, possibly in damp conditions, so appropriate clothing including waterproof trousers, are highly recommended (you could be kneeling in wet ground). We will also be walking short distances from the vehicle over potentially uneven and slippery ground, so we recommend stout boots with a good grip. You will need to bring a packed lunch.
Please bring spare memory cards and sufficient fully-charged batteries for a full day in the field.

If you have any queries about your experience level or your equipment, please do contact us and we will do our best to help.
For anyone wishing to try out Olympus OM-D equipment, please let us know in advance and Andrew will arrange to have additional equipment available for use on the day.

Note that these workshops are to some extent weather-dependent and although we will do our best to run them, they may need to be rearranged at reasonably short notice, in order to maximize the learning experience for participants.

Dates: Please contact us for availability and prices.

Maximum 5 participants

Amateur Photographer: Spring Tips

Really nice to have had a decent sized article published in spring 2019 in the venerable UK photo magazine Amateur Photographer – this time on how to photograph spring insects.

Its a perfect time of year to be brushing up on your macro and field skills for these animals so do check it out!

Outdoor Photographer

My quick guide to photographing butterflies was recently published in the April 2019 edition of Outdoor Photographer. Click on the image below to view it as a PDF.

Mineral Products Association Calendar 2019

I was delighted to learn today that one of my macro images (a great green bush cricket) has been included as the June image in the 2019 Mineral Products Association ‘Quarries and Nature’ calendar.  This is my third successful entry to this competition in four years, and was quite unexpected!

British Wildlife Photography Awards – Category Winner

I am delighted to have won the ‘Hidden Britain’ category in the 2018 British Wildlife Photography Awards with this stacked image of a nursery web spider.  This, plus a couple of other images (which ill post seperately) made it into the 2018 BWPA book, which is availible online at The winners were formally announced in early November and the awards were held on Tuesday 7th November at The Mall Galleries near Trafalgar Square.  there was some great work on display and some inspiring photographers to share the stand with.  All in all a great night!