Review of Camera Accessories

JJC TM-F2 Review: Intervalometer for the Sony A7s

A quick but detailed review of the JJC TM-F2 Intervalometer for the Sony A7s

This is the complete review of the JJC TM-F2 intervalometer for the Sony A7s. Let’s get started.


Before reading and watching the review, it is important to first understand the goals of the review. The two goals of this review are:

  • To check if the intervalometer is of sufficient build-quality to be trustworthy
  • To study and test its features to see how versatile it is in real-world situations
  • To ascertain whether it is a worthwhile investment


Why did I buy the JJC TM-F2 Intervalometer over the app?

I bought a specific intervalometer over the Sony timelapse app for these reasons:

  • I’ll have to upload the app to every subsequent Sony camera, assuming it is compatible
  • I don’t want to use the back LCD to change timelapse settings because it’s a huge battery drain
  • Punching numbers on the A7s is worse than pushing buttons on a physical intervalometer
  • I can be comfortably positioned even if the camera is at an odd angle or height
  • The beeps tell me the timelapse is working, and I don’t want the shutter to fire

I’m sure the app has its advantages, just that I’m not interested in them at this point.

Review of the features of the JJC TM-F2 Intervalometer

Here’s my review of the Sony A7s:


  • The price of the JJC TMF2 has fallen considerably since I purchased it. You can buy it for $25 or so on Amazon now. It’s slightly more expensive on Ebay but that includes International shipping.
  • The timer can be set from 1 sec. to 99 hours, 59 minutes and 59 seconds
  • Maximum shots is 399 or infinity
  • Weight: 72g

How does it perform based on the goals set for this review?

Is the JJC TM-F2 of sufficient build-quality to be trustworthy?

Yes. It’s not tough and weather proof, but for its price and features, you can buy two if you’re paranoid.

Is the JJC TM-F2 versatile in real-world situations?

Combined with the bracketing features of the A7s (or any other camera that has bracketing), the JJC performs admirably. What I don’t like is that it doesn’t have a maximum of 999 exposures, but it does have infinity, so you can shoot till the battery runs out.

Therefore, it has enough features for every timelapse application you can ask for. It just works.

Is it a worthwhile investment?

Absolutely. Buy two if you’re a professional timelapse shooter.

I hope you have found my review beneficial. If you need any clarifications, or know of better solutions, please let me know in the comments section below.

Review rating: ***
List of sponsored/free gear: None
Did I get paid for this review? No