Canon 40mm STM Pancake Lens and Eye-Fi SD Card Review


My personal review on the Canon 40mm STM Pancake Lens and Eye-Fi SD Card! My new favorite lens and memory card to walk around with. These might be your new BFF’s and you might fall in love too!

Canon 40mm STM Pancake Lens and Eye-Fi SD Card Review

Canon 40mm STM Pancake Lens and Eye-Fi SD Card Review

Say hello to my new favorite walk-around lens. The Canon EF 40mm f/2.8 STM Lens. It’s also called a pancake lens due to its size! Isn’t it cute? It’s so teeny tiny and Canon was barely able to fit the AF/MF switch on the barrel of the lens; that’s how tiny this lens is! Oh, and it’s a prime lens so you “zoom with your feet.”

You’re asking me, why did you buy it?

First, if you’re like me, I’m always wanting to carry my camera around. I always feel like there is a photo opportunity and I yearn for crisp, high-quality images. The iPhone camera is wonderful but there is really no comparison to DSLR quality photos.

Second, the two lenses I have are the Canon EF 24-70mm and the Canon EF 100mm Macro. These two lenses are my BABIES. I use them in all my food + travel photography and they’re expensive. They’re also pretty heavy. After carrying around the Mark III body AND the 24-70 lens, my shoulders and neck start to hurt. Plus, they’re way more susceptible to damage by carrying them around all the time. I just don’t have the ability to take that risk. They’re my work lenses and I’d rather prefer to honestly keep them at home for only my professional food + travel photography than carry them around. Of course, if I’m traveling for press, I will definitely still bring my L-lenses along.

Canon 40mm STM Pancake Lens and Eye-Fi SD Card Review

The 40mm lens is extremely high quality and has solid results when it comes to image quality. I’ve had this lens for several weeks now and have been really pleased with the photos I’ve been able to take. I will say, though, this lens is probably better for those who have a full-frame camera rather than a crop-sensor. On a crop-sensor, you’re looking at about 64mm focal length rather than the 40mm, which 64mm is ok, but that won’t give you the max amount of focal length you’re looking for and the full potential use of this lens.

I love being able to carry my camera around everywhere and since the lens is so small and light, having this camera in my purse is no big deal. I’d like to say on non-press trips and if we were to just head out of town and go on vacation or something, I’d probably bring this lens along so walking around with it won’t be annoying either. I also like the fact that I won’t have to worry about my expensive lenses sitting in the hotel room in a lock box. I mean, they’re pretty good, but I just don’t like that there could be the off-chance that something bad could happen to them. Having this 40mm lens is a great alternative.

The 40mm STM uses a motor technology called a stepper motor. It’s a new design of focus motors which, along with a new iris mechanism are designed to eliminate auditory noise during video recording.

So you’re wondering how much this lens is going to run you. Well, what’s really surprising is, for the build quality and image quality of this lens, this lens actually runs pretty cheap. It’s $130 on Amazon right now. Yes! $130! It’s amazing! Seriously, just cause it’s on the cheaper end doesn’t mean you’re sacrificing quality or anything of that sort.

**Note, it does NOT come with the 52mm UV filter that I have on mine. You have to buy that separately.

Canon 40mm STM Pancake Lens and Eye-Fi SD Card Review

When it comes to having a walk-around camera and lens, I’ve always wanted somehow to get my DSLR photos quickly onto my phone to share on social media or share with friends. This Eye-Fi SD card does just that. It turns your camera into a wifi device and wirelessly transmits the photos onto your phone. There’s an app for iPhones and Androids that you download and it literally takes 2 minutes to get this thing going. You insert this card into your SDHC slot in your camera, activate it on your camera and phone, and you can instantly start transferring your photos you’ve taken onto your phone.

How cool is that?! I’ve often times run into a circumstance where I’m out with friends and I have my nice camera on me and we take a cute picture and they’re like, “oh! can you send that photo to me?!” or “let’s take one with the iPhone too so you can text it to us.” It’s all about instantaneous these days and this Eye-Fi card gives you that ability to do it.

The Eye-Fi card plus my 40mm lens is a dream come true! I have loved every moment of having both of these. They’re basically my new best friends :)

This was not a sponsored post. I was not compensated in any way, shape, or form, nor was I given product for free. This is simply a review of what I think others will love as well! There are affiliate links within this post. If you click on an affiliate link, you help by giving me a little bit of credit and we all know that just means more fun reviews!


Posted on January 07, 2014

dinner for two by julie wampler



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  1. Thank you for this review Julie. I have a small obsession over 85mm f1.2 and I want to have it, but the pancake lens is just next in the queue. Caring around less weight is a good point :)

  2. 01/07/2014 at 9:29 am

    Great review Julie. Does the eye-fi slso transfer to a laptop as well as a mobile device?

    • 01/07/2014 at 9:43 am

      Hey Gerry – do you mean if it wireless transfers to a laptop like how it does to the mobile device? If so, no. Not this card. Their PRO card does that. However, if you had a SD card slot in your computer, you can just stick this card into it and grab the photos off the card that way. Hope that helps!

      • 01/07/2014 at 7:00 pm

        Yeah..I’m trying to start shooting tethered and I heard this was a possible way. Maybe I’ll just get the cable though…Thanks!

  3. 01/07/2014 at 9:35 am

    why is Christmas over?!! these are totally on my wishlist now

    • 01/07/2014 at 9:45 am

      Haha, birthday? Or belated Christmas gift to yourself? ;)

  4. 01/07/2014 at 9:39 am

    I rec’d the Eye-Fi card for Christmas. It’s so much fun, isn’t it?

    • 01/07/2014 at 9:45 am

      I absolutely love it!

  5. 01/07/2014 at 10:13 am

    I just got a pancake lens too!

  6. 01/07/2014 at 11:20 am

    those eye-fi cards are so handy..however they are not very sturdy or maybe I am irresponsible. I highly recommend everyone to put them in a case.

    • 01/07/2014 at 11:27 am

      That’s an interesting point. I’ve never had issues with my eye-fi card. They’re the same material as all my other SD cards. Either way – yes, always store them in a case to protect them!

  7. 01/07/2014 at 1:45 pm

    I’ve been staring at the Eye-Fi for a few weeks now. Glad you wrote this review! I think I need to get one. ;)

  8. 01/07/2014 at 8:09 pm

    I’m not sure which I love more… the lens or the card ahhhh stop torturing me! Remind me about this come Christmas K? Maybe I’ll be upgrading by then lol.

  9. 01/09/2014 at 3:48 pm

    I need that wi-fi card that is SO neat!

  10. Kei
    06/12/2014 at 8:52 pm

    Hi Julie, Is there anything special that you do with lighting? Your pictures come out soooo nice!

    • Julie
      06/14/2014 at 7:57 am

      I only shoot in natural light.

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