Fujifilm X100F Digital Teleconverter

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Fujifilm has included an interesting feature on the X100F that I wanted to talk about. They call it a “Digital Teleconverter” which is a fancy name for zoom-by-cropping. It doesn’t sound all that useful, but it actually is.

As you are probably well aware, the Fujifilm X100F has a fixed 23mm (35mm equivalent) lens. That’s a great focal length for many types of photography; however, it’s not particularly versatile. Unlike an interchangeable-lens camera, you have just one focal-length to work with.

This isn’t necessarily a bad thing. You’d be surprised at the number of well-known and well-respected photographers who used just one camera and one lens for decades. Limiting oneself can be beneficial because it fosters creativity. Having only one focal length at your disposal is only a disadvantage if you make it so.

One great thing about the 24-megapixel X-Trans III sensor found inside the X100F is that it has a lot of resolution. Almost nobody prints at billboard size. Rarely do people print at poster size, and the X100F files are just fine for printing that big. Most people show their pictures on the internet and make 8″ x 10″ prints, and only occasionally print larger. Many find that this camera has a ton of headroom for cropping.

The Digital Teleconverter that Fujifilm programmed into the X100F isn’t just a way to crop pictures in-camera. It applies an upscale algorithm to the crop, and also applies some smart sharpening. It makes the crops look less, well, cropped. They don’t look so much like you used a “digital zoom” (which is what you used), but more like you had a couple other prime lenses at your disposal. Fujifilm really did an excellent job with how they designed this feature.

 

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Sky Keepers – SLC, UT – Fujifilm X100F 75mm

 

You could do this all yourself with software. You could shoot RAW and do all the editing, cropping, upscaling, sharpening and so forth. Or you could let Fujifilm’s excellent JPEG engine do it automatically in-camera. This could save you some serious time!

The Digital Teleconverter has two options: 50mm (equivalent) focal length and 75mm (equivalent) focal length. This significantly increases the versatility of the fixed-focal-length X100F! It’s almost as if the camera has three different lenses built in.

The 50mm option uses 16 megapixels of resolution from the sensor, which is still plenty (the X100S and X100T had “only” 16 megapixels). 16″ x 24″ prints are no problem, and, if you have a good quality file, you can make nice looking 2′ x 3′ prints. Unless you are pixel-peeping or making poster-sized prints, you’ll have a hard time distinguishing the 50mm Digital Teleconverter images from full resolution files.

The 75mm option uses 12 megapixels of resolution from the sensor, which is still plenty for most people and most uses (the original X100 had “only” 12 megapixels). 12″ x 18″ prints are no problem, and, if you have a good quality file, you can make nice looking 16″ x 24″ prints. Unless you are pixel-peeping or making large prints, nobody will be able to tell that you cut out half of the picture.

In a sense, it’s like getting an X100 with a 75mm lens and an X100T with a 50mm lens packaged with your X100F. As good as that sounds, it’s actually even better because of the advancements and updates the new camera has that the old ones don’t.

 

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Black Conduit – SLC, UT – Fujifilm X100F 50mm 

 

Another advantage of the Digital Teleconverter is that it allows you to do macro photography with the X100F. The closest focus distance is about four inches, which isn’t quite close enough for macro at the 35mm (equivalent) focal length. But the 50mm and 75mm options allow you to achieve true macro, even if barely.

You can custom program many of the controls on the X100F. I have the Digital Teleconverter set to the manual focus ring, which I believe is the default setting. In auto-focus mode, turn the ring to the right and it zooms in and turn it left and it zooms out. It’s very convenient.

Some have complained that the Digital Teleconverter is a JPEG-only function. If you shoot RAW and you want to do a similar zoom-by-cropping, you’ll have to use a couple different software programs and spend awhile in front of a computer. Thankfully Fujifilm has included some excellent Film Simulation settings for camera-made JPEGs on the X100F. My favorites are Acros and Classic Chrome.

Here are some 50mm examples, all straight-out-of-camera JPEGs:

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Drops On A Bud – Layton, UT – Fujifilm X100F 50mm

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Rose At Ogden Depot – Ogden, UT – Fujifilm X100F 50mm

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Cilantro – South Weber, UT – Fujifilm X100F 50mm

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Kodacolor – South Weber, UT – Fujifilm X100F 50mm

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K-Cup – South Weber, UT – Fujifilm X100F 50mm

Here are some 75mm examples, all straight-out-of-camera JPEGs:

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Building Storm Over Ridge – South Weber, UT – Fujifilm X100F 75mm

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Ball & Hoop – South Weber, UT – Fujifilm X100F 75mm

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Elite – South Weber, UT – Fujifilm X100F

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Coffee & WiFi – Orem, UT – Fujifilm X100F 75mm

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Light Bulb Shadow – Ogden, UT – Fujifilm X100F 75mm

 

 

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27 comments

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  9. richardacairns · March 16, 2018

    Hi, I know this is an older article now – but I just found it, and thought it was really helpful. I’m weighing up buying an X100F and wanted to see examples of images taken with the digital teleconverter. Your images have shown me that using the digital zoom doesn’t have to ruin the image quality. 🙂

    Liked by 1 person

  10. Jos · August 28, 2018

    I know I’m late at the party but this was very useful information. This is something I will keep in mind by choosing a new Fuji camera. It looks like a great option as a travel camera when traveling light.

    Liked by 1 person

    • Ritchie Roesch · August 28, 2018

      The X100F is such an incredible travel camera, you won’t be disappointed by it.

      Like

  11. Carl · September 8, 2018

    Hi, did you notice that the series picture modus does not work with the digital teleconverter? I wonder why…..

    Great blog here. Greetings from Germany!

    Carl

    Liked by 1 person

    • Ritchie Roesch · September 8, 2018

      Thank you! I didn’t notice that, so I suppose I will have to keep an eye out.

      Like

  12. Morten · November 7

    Hi,
    You made a mistake in calulating the megapixels for the different modes,
    50mm 11.8Mpix
    75mm 5.2Mpix
    because there’s a square in difference between computing megapixels and digital zoom.
    For example if you have a 2×2 sensor with 4Mpix, then 2x digital crop will use 1×1 of the sensor, giving you 1Mpix in the cropped image.

    Like

    • Ritchie Roesch · November 7

      I’m not a mathematician, but we’re talking equivalent focal lengths. So we have 35mm, 50mm and 75mm. Roughly speaking, half of the sensor (or, really, just over half) is cut out on the 75mm crop.

      Like

      • mattsweadnerphotography · April 15

        Won’t multiplying the pixels of the image produced settle the number of megapixels employed in those crop modes?

        Like

      • Ritchie Roesch · April 15

        Yeah, I have no idea. I’m no mathematician, and so I’m not confident in what the correct answer is. What I have decided is that the outcome is more important than whatever behind-the-scenes stuff goes on to get the outcome. The digital teleconverter is a nice feature.

        Like

  13. Morten · November 7

    Yes, but try thinking about it this way: Roughly half of the width of the sensor is used on the 75mm crop, which means also half of the height, which translates to using around a quarter of the resolution.

    Just like crop factor for cameras, a Nikon DX has a crop factor of 1.5 because the ratio of the sensor widths are 1.5, not the areas.

    Like

    • Ritchie Roesch · November 7

      Like I said, I could be completely wrong, but it’s about half of the total sensor area that is cropped, not three quarters.

      Like

      • Morten · November 7

        Using images from the camera I made this illustration:

        As you can see here, the 75mm crop uses one quarter of the sensor. While making the image I realized the 75mm mode is actually closer to a 70mm, so it uses very close to 6Mpix.

        I found the images on:
        http://zetterstrand.com/x100f/x100fvsx100t.html
        (because I only have an X100S) 🙂

        Like

      • Ritchie Roesch · November 7

        If it is indeed 6mp worth of data that is being used, Fujifilm is doing one heck of a job not making it look like it! It’s amazing how little the image quality degrades.

        Like

    • Ritchie Roesch · November 7

      There are definitely people who are smarter than me that can calculate this, and perhaps you are one of them.

      Like

  14. mattsweadnerphotography · April 15

    I was about to pull the trigger on an X100T but that digital crop added to the other features seems to have swayed me to the F. Thanks for the article.

    Liked by 1 person

    • Ritchie Roesch · April 15

      You are welcome! I hope you enjoy the X100F! What color are you going to get?

      Liked by 1 person

      • mattsweadnerphotography · April 15

        I prefer the silver. It’s weird because I had the original X100 in 2011 and it was silver but I wanted black lol. Over time I think the silver just looks better. People will think it’s an old camera too so that’s always fun haha.

        Liked by 1 person

      • Ritchie Roesch · April 15

        I love the silver version. I’d be interested in seeing the brown one person. I think I’d really like it, but maybe I wouldn’t.

        Like

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