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petrochemist last won the day on December 10 2020

petrochemist had the most liked content!

About petrochemist

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  • Location
    North Essex, UK
  • Interests
    Outside of family life I'm interested in most forms of photography, from UV to NIR, & microscopic to astro including adapting lenses not intended for my cameras (or even any camera)
  1. I'd lay odds it's not the camera. You are used to seeing your face reflected and so mirrored. Using a camera you get to see what everyone else sees, it's your expectations that are mirrored..
  2. I strongly suspect no-one makes one, and quite possibly never will. Leica L has only 1-2mm more registration than e-mount which doesn't leave a lot of space for an adapter. I've not got any L mount bits but I think it's also significantly wider than e-mount which almost certainly makes an adapter that focuses to infinity without optical elements impossible. Google is showing you all the adapters there are 😳
  3. Exactly - which why the order of the TC & tubes makes a big difference.
  4. It may be of interest to hear an AF adapter has recently been announced for Pentax lenses (which will also control apertures) https://www.sonyalpharumors.com/this-is-the-prototype-of-thw-worlds-first-monsteradapter-la-ke1-pentax-k-mount-to-sony-e-mount-autofocus-adapter/ I heard about it just after receiving my DA-Nex adapter (which has fairly limited movement compared to aperture rings, and no click stops at all) I don't think the movement directly correlates to f-stop, just progressively closing the aperture over the course of ~20mm movement. FWIW though most of my DA lenses o
  5. Yes you should be able to, at the expense of distant focus so it may only be relevant for 'close up' or even true macro shots. The focusing effect of the tubes would be just the same as if used without the TC. I've used a similar combination in other mounts. Using a 25mm tube & a 50mm lens with a 2X TC will end up with 1:1 & closer. Note if the TC can be added directly to the lens tubes give a different result on the other side of the TC. 'Camera, tubes, TC, lens' doesn't equal 'Camera, TC, tubes, lens'
  6. The minolta A mount was originally a film mount, but it was for autofocus cameras. Your XD7 is manual focus so needs lenses in one of the variants of the SR mount (MD being the most common) I don't think there are any adapters made for this.
  7. Many cameras (not just Sony) will increase their number to match the next available on a card if used with one already containing pictures. If you have a camera that's shooting images named pic-0025 & use a card with an image named pic-0995 on it the camera will increase to pic-0996, and it doesn't drop it's number back when you change the card back. I'm not sure if this behavior is followed if the initial part of the filenames differ using a card with IMG-0995 might still be enough to increment the count.
  8. Are you sure the chart doesn't relate to the LA-EA1 or 2 as both of those are APSC only. There'd be no point in redesigning the adapter if it couldn't give FF.
  9. The screw on adapters that mount on a lenses filter threads were originally designed for film so will work on FF, IQ will probably be somewhat disappointing however. Some of these are wide angle rather than true fisheye so the FOV may not be too dramatic. Mine are just wide angle adapters between 0.42x & 0.8x (the 0.8x one gives good IQ) I've seen some that claim 0.12x turning a 50mm into a 6mm which should be a true fisheye FOV. Perhaps a better option is to go with a fisheye for APSC & simply crop the image. I have an 8mm unbranded fisheye designed for MFT that only cost a
  10. Somewhat overcooked in camera HDR, with the Industar 61

    © Mike Kanssen

  11. Adapted Industar 61

    © Mike Kanssen

  12. I know the threads a bit old (at least its just 15 months) but I can add a little that might be relevant. Sony is one of the few camera makers who have introduced switchable IR sensitivity. Their 'Nightshot' feature does exactly this and was available on quite a range of models some years ago. My first truly IR sensitive camera was one of them the Cybershot DSC V1, a compact camera with a tiny 1.5" rear screen. Although this camera was introduced back in 2003 Sony were already starting to cripple the IR capabilities. (It applies an awful green color cast to the images, and the nightshot mode
  13. I spend far too much time on multiple photographic forums, so have gone though the new member routine quite a few times. As it happens I only joined this one today, and the post approval happened within half an hour. Very quick! Forums usually have a moderator available to approve first posts in less than 24 hours (moderators have lives too!) A few forums are much more involved than this one, sometimes taking so long that I'd forgotten what aspect of that particular forum had caught my eye... Here I was allowed to type my first post straight away solving that issue.
  14. Actually it's only the ability to adapt to such a wide variety of lens mounts that interest some of us. It's given me a wide variety of lenses to choose from for less than the cost of a single native lens. While the native lens line up has increased dramatically it still doesn't have options that match the capabilities of some of my toys. Coupled to a rangefinder lens a mirrorless camera will manage much better than a DSLR. Sony's longest lens is 400mm, I have 500mm, 600mm & even 1000mm options even without using teleconverters. There are a couple of native tilt shift lenses from 3rd
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