In this episode, it's a daunting prospect for the amateur photographers who will photograph a portrait of actor Vince Colosimo, businessman and philanthropist Dick Smith and performer Christa Hughes.

Competing for the best portrait photo is mother of two Nicole Wells, actor Jonny Nicolaidis and student Isobel Dunworth Markus.

Gary Heery is the guest judge and arguably Australia's most successful portrait photographer who counts Madonna, Andy Warhol and Roy Orbison amongst his subjects. His advice is "don't be afraid of them just because they are famous".

This week the three amateur photographers travel to Tasmania's Mount Wellington, outside Hobart, where they literally encounter four seasons in one day. The task is to shoot a winning landscape photo.

Competing for the best photo are dance physiotherapist and rock climber Annabel Ralph, keen music photographer Peter Cagnacci and mother of three Marg Gibson.

Frances Mocnik is the guest judge and her advice to the photographers is "don't chase the chocolate box, make it emotive".

It's a daunting prospect this week as the amateur photographers must take photos at a wedding and negotiate the expectations of the bride and groom who have planned an unconventional event.

Competing for the best wedding photo is mother-of-three, Bronwyn Courts, young photographer Walt Loveridge and student Skye Wagner.

This week's guest judge is Tamara Dean, an award-winning photographer from The Sydney Morning Herald who specialises in the theme of ritual and intimacy within the contemporary Australian landscape.

This week the photographers go to the Royal Randwick Racecourse in Sydney with plastic cameras to take a winning photo which sums up a day at the races.

Without the luxury of viewing the photo after the shot has been snapped, their skill and understanding of framing and light will be challenged by using plastic cameras which are renowned for their hit or miss qualities.

Competing for the best photo is student Khia Kinchella, artist Mel Anderson and prison officer Scott Westlake.

This week’s guest judge is veteran photographer Tim Hixson who started using plastic ‘Diana’ film cameras in 1970.

In this week's assignment the amateur photographers must each direct a fashion shoot from different eras: the fifties, the sixties and the seventies using a digital SLSR camera.

The challenge is to direct a hair and makeup team and devise wardrobe, the set and lighting for their photo shoot.

Competing for the best photo are students Ellen Virago and Stefan Gianmarco and school teacher Arpana Pillay.

This week's guest photographer is the highly regarded fashion photographer Juli Bella.

In this week's assignment the amateur photographers take on the role of photojournalists for the day.

They are each sent to a location to try and capture a photo which illustrates the headline 'Who Cares'.

Competing for the best photo are university student Sophie Joyce, marriage celebrant Bevan Badcott and student Jodie Harris.

This week's guest photographer is award-winning photojournalist Andrew Quilty.

In this week's assignment the photographers are given a mobile phone and sent to a city location to get a photo which illustrates the people and the place they are in.

Competing for the best photo of the day are advertising project manager Arneka Grosvenor, financier David Stefanoff and film graduate Mary Munro.

Guest photographer this week is Misho Baranovic, a leader in the emerging art of mobile phone photography.