Dat Sharpness Doe: Olympus 75mm f1.8

I just got a sweet deal on a used Olympus 75mm f1.8 which I've been considering as a serious headshot/portrait lens. The focal length of this lens is quite useful to compress the picture and smash the whole thing to look more interesting and flattering especially when shooting a person's face and thus will help me achieve better portrait result.

When it comes to portrait, the ideal focal length is a mild telephoto focal length between 85mm and 200mm in full frame terms; this prime lens is the equivalent of 150mm full frame which sits right in the ideal focal length range. Coupled with a nerve-wrecking f1.8 aperture, this is ideal to get either low light performance or a super shallow depth of field.

The lens itself isn't lightweight; it is at least as heavy as my old Tamron 17-50mm f2.8 non VC but it is not as large. It is as big as my 14-140mm f3.5-5.6 lens though. For Micro Four Thirds standard, this is big. But for APS-C standard, this is just as big as a standard kit lens.

A warning when using a lens of this focal length: shutter speed matters! You have to get at least 1/200s without stabilization to make your picture sharp. With my E-PL6 in body stabilizer, I can shoot sharp at 1/60s but lower than that is pretty much hit and miss.

What's so special about this lens?

The sharpness is OFF THE CHARTS!!! Shoot wide open, and the picture is already sharp. Stop down to f2.8 and it will reveal the smallest detail possible from a picture. Stop down to f4 for it's maximum possible sharpness but even at f1.8 the sharpness is already crazy enough!

Talking about the bokeh, this lens will give the most bokeh for your money. It has a crazy shallow depth of field due to it's focal length(even in Micro Four Thirds environment) and you should treat this shallow depth of field carefully to your advantage. I find that shooting short range portrait using this lens will require me to stop down to f2.8 to get a person's facial feature sharp from the front of the head at least to the ears. F1.8 is a bit too unwieldy to use when shooting portrait, unless your subject is far away from you.

You can read full detail of the lens on so many different websites who did some lab tests for this lens, but for real world usage this is definitely an ultra sharp lens that you can use at large aperture with ease.

The build quality of this lens is also top notch! It's all metal and the focusing ring is very smooth and just nicely dampened a little bit. It doesn't come with a lens hood and if you care about lens flare or protecting your lens, you should find either the Olympus one or the cheap third party one.

People seemed to love talking about the "color rendering" of this lens so much. I don't get it, I don't find that it produces different looking colors when compared to the other lens shooting more or less the same scene. I don't seem to notice anything about the color anyway but let me assure you that the contrast level is at least top notch! I can notice the contrast level because I used to have a lens that doesn't have a good contrast when I was still shooting Canon.

What do I need to know before I buy this lens?

Be mindful, 150mm is not a general use focal length, you might not going to use this lens frequently for your photography. 150mm is neither long or short; it's definitely not a wildlife lens and it's not short enough to get environmental photo without stepping back very far from the subject. Think carefully before purchasing this baby because the price isn't cheap and you only get one focal length. If you are specifically looking for a portrait or a headshot lens, definitely this is the right one for you. If you are looking to shoot general photography stuff or even street photography, I don't really think this is the right lens. You will be better served with something more flexible such as the Panasonic 35-100mm f2.8, or the Olympus 45mm f1.8, or similar lens.

Also, one thing that bothers me is the amount of chromatic aberration produced by this lens. I don't know if mine is a defective one or if it's simply just the case with every 75mm f1.8. The chromatic aberration doesn't go away even at f4. I have to stop it down to f5.6 for the fringing to completely disappear which is kinda sucks. The good news is that the chromatic aberration is easily removable using Lightroom or similar software.

In summary

Buy this lens if you are doing portrait or low light mild telephoto stuff. Don't buy this lens if you are doing wildlife, it is not long enough. Also for street photography, the 45mm will be easier to wield than this lens unless you are doing specific thing with your photo that requires a longer focal length. If you want a more flexible lens, get the 35-100mm f2.8 or similar lens.

Here are some example of pictures that you can expect to get using this lens:

This was shot at f1.8. Very sharp! See that bokeh?

The compression makes everything look flat and pressed. Good for portrait stuff

See those individual hair? That's the sharpness level that you can expect from this lens.

Very useful at low light to get reasonable mild telephoto street photo.

Get closer to your subject than the 45mm f1.8.

Headshot using this lens gives a very flattering result!

I hope this post helps you to decide whether this lens is the right one for you or not. Thank you and God bless you :)