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ETTR Exposure Meter Update
This post comes with a little twinge of sadness, as it will be the last post I will flag on the DPReview forum, as Amazon, in its infinite wisdom, has decided to shut DPReview down.Like many...
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QDFS: update
This post is to record the latest tweaks to my Quasi Depth of Field Script (QDFS). I wrote the M3 (only) QDFS to complement my Landscape Bracketing Script, that is optimised for auto focus and exposure...
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QDFS: A few handheld enhancements
In this post I'll discuss the latest version of my Canon M3 Quasi Depth of Field Script. In addition to some UI changes, eg focus distance is now stated in cm, I've added some bracketing enhancements....
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QDFS Field Testing
In this short post I'll discuss the latest tweaks I've made to my Canon M3 Quasi Depth of Field Script (QDFS) and show a few snaps from a recent field trip to the National Trust's Stourhead...
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Medium Format Panoramas with the EOS R
In previous posts I've covered how I use sensor bracketing to create larger formats than the native sensor size, eg: here and here, and in many other posts.One of the advantages of using mirrorless...
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Happy 10th Anniversary to Magic Lantern Dual-ISO
Although I don't have my Canon 5D3 anymore, having converted to an R, I still have lots of 'old' 5D3 captures.Since A1ex at Magic Lantern introduced Dual-ISO ten years ago, the basic idea hasn't...
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Digitally emulating a 30mm Hasselblad XPan
I met up with a good photography friend this last week and was suitably envious when he brought out his 'new' XPan (Mk1) system, in near mint condition, that he had just purchased with a full set of...
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Do we still need to exposure bracket?
Today's post processing engines and tools have incredible capability. In addition, using Lightroom as a hub, it's relatively easy to pop in and out of various software packages.This software capability...
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Latest XPan Emulation Experiment
In this short post I'll show how I've adapted my IR converted Canon M10, with its 4.29 micron pixel pitch, using a 35mm Mamiya 645 lens, coupled to a 645-EF adapter, coupled to an EOS EF to M RhinoCam...
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Dungeness Field Trip
The other week I was fortunate to be able to visit Dungeness with my camera club. The reason I say fortunate is that I was with 11 other photographers, and we all had the same environment in front of...
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In-Camera Focus Bracketing Demystified
In this post I’ll introduce a model for understanding in-camera focus bracketing, and discuss how to ‘calibrate’ your camera’s auto focus bracketing, despite the manufacturer’s opaque guidance.Like...
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In-Camera Focus Bracketing Demystified: Part 2, Macro bracketing
In the last post I introduced a hyperfocal-based model to 'calibrate' in-camera focus bracketing, to be able to set the manufacturers’ step size, from 1 to 10, according to the overlap blur we wish to...
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Virtual XPan simulation…maybe
According to the Hasselblad web site, “the XPan was an extremely unique camera, providing the advantages of the 35mm format but also the ability to swiftly change to full panorama format without having...
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In-Camera Focus Bracketing Demystified: Part 3, telephoto bracketing
In part one of these posts, directed at demystifying in-camera focus bracketing, I introduced a hyperfocal based model that allows us to reinterpret the camera manufacturer’s focus bracketing 'quality'...
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Focus by wire warning: not for manual focus bracketing
In previous posts I've shown how you can 'calibrate' your in-camera focus bracketing, such that you can set the focus step in terms of the overlap optical blur that you wish to use: Part 1.But what if...
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Another look at focus bracketing
In recent posts I've explored deep focus bracketing, for example for landscapes, where we wish to capture focus brackets from the minimum focus distance to infinity, using a simple object side...
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Focus Bracketing: An Integrated Perspective
In previous posts I've discussed focus bracketing models from both the object and image side of the lens. In this post I'll bring together both perspectives and show they are essentially the...
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Magnification: one quick and simple method
As we have seen in my recent posts, knowing the magnification, at say the minimum focus distance (MFD), can be useful, eg for estimating the number of focus brackets we need to take between the MFD and...
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Poor Man’s Optical Bench
There are two types of photographer: those that like/need to understand their lens and its characteristics; and those that treat the camera+lens as a simple system, with the sensor as the zero or...
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A simple method to estimate the Entrance Pupil position of any lens
Caveat Emptor: As lasers are involved, you need to be aware of the risk to your camera's sensor. So only use a laser if you are prepared to experiment and potentially damage your camera sensor....
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Getting to know a 'new' lens
In the last two posts I introduced the Poor Man's Optical Bench (PMOB) tool and showed how you can easily locate the entrance pupil of your lens using a cheap laser leveller.Knowing: the position of...
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Poor Man's Optical Bench: Macro Update
Just a quick update on my Poor Man's Optical Bench simulator, that you can access from the right hand link.In addition to a few UI tweaks, such as being able to show an outline of the lens and camera,...
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Another look at Sensor Bracketing: Part 1
In the next few posts I'm going to take a 2025 look at, what I call, sensor bracketing; which, so there is no confusion, I define as planar shifting the sensor relative to a lens.Clearly, you can not...
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Another look at Sensor Bracketing: Part 2
In the previous and first post in this short series about 'flat/planar sensor bracketing', I started with one of my best quality lenses: the Canon TSE II 24mm L.The larger image circle of the TSE lens...
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Another look at Sensor Bracketing: Part 3
In the last two posts (here and here) I discussed what I call 'sensor bracketing', that is exploiting a lens with a larger image circle, to allow moving the sensor relative the lens, without parallax...
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