I have been browsing a lot of websites on some reviews on my next possible lens purchase. On my list are the Sigma 30mm f1.4, Zuiko 9-18mm f4-5.6, and the Zuiko 70-300 f4-5.6.
Although I rarely use the telephoto end of my current telephoto lens, I have been considering buying the Zuiko 70-300 as an alternative lens for my macro works. It would also be useful for my street photography because I can capture my subject from a distance and take candid shots of them.
The Sigma 30 mm f1.4 will be perfect for my food photography, as I shoot indoors with minimal lighting. It's also going to be great for portrait and low light shooting.
The Zuiko 9-18 ultra-wide lens would be perfect for taking photos of interiors and buildings that are useful for photographing my projects. It's decent for landscape photography too.
Upon close deliberation of all three lenses, it all comes down to choosing between the Sigma 30 mm and the Zuiko 9-18. I still can't decide which of the two lenses is going to be more useful to me. I regularly take food shots for my blog, and I do require a wider lens to shoot small interior spaces.
Both lenses perform excellently and are worth every penny. I guess I'm going to have to make my decision when the time comes to purchase one of these lenses. Below is a link on a Focal Length Simulator that I used to help me with my decision. I hope this is going to help you determine whether you want to go wide or telephoto.