The GFX 50 Series is an ISO-less Classic

The sensor in the GFX 50 series is certainly not the fastest. Nevertheless, you should not underestimate this ISO-invariant classic with its 50 megapixels. In terms of sharpness and dynamic range, it can still hold a candle to newer developments.

by Rico Pfirstinger

Virtually all cameras of the Fujifilm X series are ISO-less (also known as ISO-invariant). This refers to cameras with sensors for which the ISO setting doesn’t matter in terms of image quality. Only the set aperture and exposure time (shutter speed) are decisive. It’s all about the actual amount of light that reaches the sensor. I have written about this before (German version, English version).

Is My Camera ISO-less?

You can find out yourself to what extent the sensor in your camera is ISO-less. Here’s an example with a GFX 50S: I first shot a consistently lit test subject at f/13, 1/50 sec. and ISO 1600. The result was a correctly exposed image. I then shot the same subject again at aperture 13 and 1/50 sec., but this time I reset the ISO to ISO 100. This is the base ISO value of the GFX 50 series, i.e. its baseline sensitivity. Of course, the second image appears four stops darker. After all, it was taken at an ISO setting that was four stops lower than the first shot, with otherwise the same exposure. To make our second image (captured at ISO 100) appear as bright as the first, we need to boost it four stops in the RAW converter (in our case, that’s Adobe Lightroom). This we do by moving the converter’s exposure slider 4 EV to the right from its zero position.

The same subject shot twice with f/13 and 1/50 sec. – on the left with ISO 1600, on the right with ISO 100 and a subsequent brightening in the RAW converter by 4 EV.

Please click on the image for a larger version.

To better assess whether the GFX 50S used in this example really works ISO-less, let’s take a closer look at enlarged details of the two test shots:

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Sensor Cleaning and IBIS

For most users of X-Series cameras, do-it-yourself sensor cleaning with blowers, sticky sticks or swabs is a matter of course. However, things can get a little bit tricky if your camera has IBIS.

by Rico Pfirstinger

Sooner or later, cameras with interchangeable lenses get dust or dirt on the sensor. When the built-in sensor-cleaning function (SET UP > USER SETTING > SENSOR CLEANING > OK) doesn’t help, you can clean the sensor by yourself.

If you leave your camera’s sensor exposed, it will soon collect dust and spots from dried fluids.

Popular Sensor Cleaning Options

  • Touchless cleaning involves using a blower, like the Giottos Rocket Air Blaster, to rid the sensor of dust particles. A key feature of such devices is a filter in the intake valve that prevents contaminated (dusty) air from being blown against the sensor.
Caution! Don’t use compressed air from aerosol cans that contain propellants. Particles could hit the sensor like tiny projectiles and damage the protective surface!
  • Tough sensor dirt (like water or oil stains) requires wet cleaning with a sensor swab. They consist of wipers that are wetted with special cleaning fluids. Wipe one side of the swab from left to right over the full width of the sensor, and then from right to left with the other side of the swab. Your X-mount camera requires swabs that match APS-C-sized sensors.
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First Look Review: Fujinon GF250mmF4 R LM OIS WR

Reaching Out: GF250mmF4 R LM OIS WR

The new GF250mmF4 R LM OIS WR and the optional GF1.4x TC WR teleconverter lens bring genuine telephoto capability to the evolving Fujifilm GFX medium format system. Featuring impressive detail resolution and three-dimensional subject rendering, the rather moderately priced GF250mm equals a 198 mm lens in 35 mm “full-frame” terms, and its reach can be stretched to 350 mm by attaching the new 1.4x teleconverter. Fujifilm’s GF product introductions are completed by two macro expansion tubes that work with almost all existing GF lenses and can turn the GF120mmF4 into a true 1:1 macro lens.

So is it all worth it? You should be able to decide for yourself after reading this first-look review based on pre-production samples of the GF250mmF4 R LM OIS WR, GF1.4x TC WR, MCEX-18G WR and MCEX-45G WR.

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Fujinon GF 250mm F4: BHphoto, Adorama, AmazonUS
Fujinon GF 1.4x Teleconverter: BHphoto, Adorama, AmazonUS
18mm Macro Extension Tube: BHphoto, Adorama, AmazonUS
45mm Macro Extension Tube: BHphoto, Adorama, AmazonUS

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by Rico Pfirstinger

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X-E2 vs. X-E2S: Ending the Confusion

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X-E2 vs. X-E2S: Ending the Confusion

by Rico Pfirstinger

Talk to Rico (open forum for questions & feedback)

Rico’s Books at Rocky Nook – Fuji X Secrets Workshops – Rico’s Flickr Sets

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By upgrading your Fujifilm X-E2 with firmware 4, you are giving up the camera that you knew: Your X-E2 will turn into an X-T10—only with a rangefinder design. However, on the inside, both the X-E2v4 and the new X-E2S offer (almost) the same features, the same menu options and the same graphical user interface as the X-T10.

Rico_BannerThis is important. To begin with, it means that your old X-E2 user manual has become pretty much obsolete. That’s why Fujifilm has created an entirely new manual along with firmware 4. You can download it here as a PDF file. It also means that my eBook on the X-E2 doesn’t apply to cameras running firmware 4 or the new X-E2S. It’s still great if you don’t upgrade your X-E2, but users who have made the jump are now much better off with my book on the X-T10.

I am not kidding! As long as you can see beyond the different form factors (rangefinder style vs. SLR style), my X-T10 book is now almost perfectly applicable. It really is, because Fuji did a terrific job transforming the X-E2 into an X-T10 with camouflage. This means that my X-E2 eBook won’t be updated. It doesn’t have to, because the update is already here.

Same Same, But Different

Okay, so your X-E2 is now a rangefinder-style version of the X-T10. Great! But what exactly are the differences between an X-E2 running firmware 4 and the new X-E2S? There seems to be some confusion, so let’s straighten it out.

X-E2

X-E2S_silver_back

X-E2 vs. X-E2S

On the outside, the differences are minimal. The X-E2S offers an “improved” hand grip, but to be honest, I can’t feel much of a difference. However, pressing the four selector buttons on the back of the X-E2S does feel better, so this may be another small improvement over the classic X-E2. With firmware 4, you can forget the MACRO and AF descriptions on two of the X-E2’s selector buttons, as all four selector keys now serve as Fn buttons, just like in the X-E2S. This gives both cameras a total of 7 Fn buttons!

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First Look: Fujifilm X70

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Fujifilm X70: USA: BHphoto / AmazonUS / Adorama / CANADA: AmazonCA / EUROPE: AmazonDE / AmazonUK / AmazonITA / AmazonFR / AmazonESP / PCHstore / WexUK / AUSTRALIA: CameraPro

First Look: Fujifilm X70

by Rico Pfirstinger

Talk to Rico (open forum for questions & feedback)

Rico’s Books at Rocky Nook – Fuji X Secrets Workshops – Rico’s Flickr Sets

Rico’s X70 Full-Size Sample Images

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Size Does Matter: The tiny Fujifilm X70 was inspired by the Ricoh GR II. Beyond their pocketable size and weight, both cameras share a Sony-built APS-C sensor with 16.3 MP, a 18.5mmF2.8 lens and plenty of street cred as premium compacts that you can carry with you all the time.

The X70 also incorporates the spirit of the X-series: a solid design with dials for everything, the functionality and image quality of the popular X-T10, and a very well-made lens. It also premieres a tiltable display with touch control for quick focusing, instant shutter release and intuitive image playback.

A black X70 (pre-production) pretending to be weather-resistant

Initially, the X70 was supposed to be introduced in concert with the X-T1 in early 2014, but Fujifilm shelved these plans in favor of the underrated X30. Of, course, the new X70 of 2016 embodies all the major goodies and features that have been developed in the past two years: the new AF system with more sensitive PDAF pixels, AF zones and “3D tracking”, Classic Chrome, a new and improved user interface and now even a touchscreen.

Click here for full camera specs and here for full-size sample images.

The X70 is available in black and silver versions

Main features include…

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