British landscape photographer and tutor. www.adamburtonphotography.com

An outstanding multi-award winning wildlife photographer who also leads various workshops. www.andrewparkinson.com

For printing of personalised photo books, calendars, etc. www.bobbooks.co.uk

A very talented wildlife and landscape photographer. www.caronsteelephotography.com

An expert professional bird photographer. Runs workshops in the UK and abroad. www.chrisgomersall.co.uk

One of the world's top wildlife photographers. Runs a number of select wildlife tours for photographers. http://chrisweston.photography

Websites for photographers and artists www.clikpic.com

Workshops in the Camargue, France photographing white horses, wild bulls, festivals, flamingos and landscapes. https://www.create-away.com/

A professional wildlife photographer with hides and courses in West Sussex for photographing kingfishers, owls, badgers and other species. www.davidplummerimages.co.uk

Manufacturer of studio lighting equipment. www.elinchrom.com

An award-winning freelance wildlife photographer, tour leader & photographic guide based in the UK www.ellierothnie.com

An outstanding Italian wildlife photographer resident in Kenya. Offers private and group photographic safaris. www.imagesafaris.com

Supplier of professional photographic equipment. Authorised Nikon repair centre. www.fixationuk.com

A long-established wildlife & adventure travel company providing tailor-made holidays. https://www.ganeandmarshall.com/

Manufacturer of excellent tripods and monopods. www.gitzo.co.uk

Professional Nikon dealer with large stock of new and secondhand equipment. www.graysofwestminster.co.uk

Wildlife centre near Andover with over 150 birds of prey. Photographic experience days, with or without the guidance of a professional photographer. www.hawkconservancy.org

An outstanding professional landscape photographer. www.helendixonphotography.co.uk

A cutting edge fashion photographer specialising in latex wear. Also has comprehensive portfolio of travel and wildlife images. www.jmkphoto.co.uk

British landscape photographer and tutor based in East Anglia. www.justinminns.co.uk

Supposedly the best filters money can buy. www.leefilters.com

Leading manufacturer of neoprene covers for camera lenses, tripods, lens hoods and other photographic accessories. www.lenscoat.com

Professional framing and mounting of photographs and artwork. www.londonpictureframing.co.uk

A talented portrait and boudoir photographer. www.lucianarizziphotography.com

Mark and I have travelled to many places together, mainly for wildlife photography. www.markcale.com

Erotic boudoir photography. http://www.mightyaphrodite.co.uk/

Everything about the Nikon product range. I have been using the Nikon system for over 35 years. www.nikon.com

Independent magazine for Nikon users. www.nphotomag.com

An award-winning freelance photographer and published author. His book "Hunting with Eagles" is an invaluable record of this vanishing culture in Mongolia. www.palanimohan.com

Professional photographer based in Tanzania. Runs photographic wildlife tours in Africa, www.pauljoynson-hicks.com

Quality prints and other services from digital media and film. www.peak-imaging.co.uk

Professional photographic and art printing. www.theprintspace.co.uk

Experts in tripods and camera mounting systems. http://reallyrightstuff.com

Membership society for photographers with special interest & local groups. Awards distinctions at three levels of achievement. www.rps.org

A professional photographer and expert on Nikon equipment. Simon also writes extensively and runs workshops. www.simonstafford.co.uk

Manufacturers of a wide range of high quality bags for the professional photographer www.thinktankphoto.com

Manufacturer of the best tripod gimbal heads for large telephoto lenses. www.tripodhead.com