Tag Archives: 1:1 magnification

Is It Worth Using a 2X Teleconverter? Bower A-mount With Sony A7II (With LA-EA4 Adapter)

I’ve been wondering for a very long time if using a teleconverter, moreover a 2x one, was worth it or not. I’ve heard a lot on forums that I would lose light, the aperture is reduced 2x (f/2.8 becomes f/5.6) that it is not sharp at all and that I would even lose autofocus. That made me doubt a lot even if it is not that expensive, but still, from $120 to $180 on average, that is always money coming out of you wallet that would be lost in the end if this is really bad!

The Situation

I use this Sigma 150mm f2.8 APO macro lens for all my macro work that is very good but also big and heavy. I wanted to have this extra reach to do some wildlife photography without adding the bulk and weight to my backpack and without paying $1500-$2000 for a 300mm lens. A teleconverter then seemed like a good idea so I gave it shot. I bought this Bower Teleconverter on Amazon for $126.

Bower SX4DGS 2x Teleconverter for Sony
Bower SX4DGS 2x Teleconverter for Sony
I am extremely pleased with my purchase. This adapter is pretty small, 1 inch (2.5cm) wide, about 7oz (200g) so this is not much of a big deal to always have it with me in my backpack. As a reminder, I shoot with an Sony A7 mark II and use the Sony LA-EA4 adapter specifically for this Sigma lens. I thus add the teleconverter (A-mount) in between the lens and the LA-EA4 adapter. Continue reading Is It Worth Using a 2X Teleconverter? Bower A-mount With Sony A7II (With LA-EA4 Adapter)

Choosing the Ideal Macro Lens Focal Length

What is the difference between the 60mm, 100mm and 150mm macro lens? 

If you’re looking to purchase a DSLR macro lens for the first time, it’s easy to get confused by the range that is available. To be considered as a macro lens, the lens must feature a 1:1 magnification, meaning that the object will be reproduced at its actual size on the sensor. depending on the practice you have, you’ll need different length of macro lenses. But let’s define what macro photography is.

What is Macro Photography?

Eye macro lens - iLHP
(Photo credit: Suren Manvelyan)

But first, what is macro photography? It’s pretty hard to define. We all have our own appreciation of the distance it should be to be considered macro. Usually people tend to call everything macro as long as it is a general close-up. It actually gathers 3 types of categories:

Continue reading Choosing the Ideal Macro Lens Focal Length