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Floris Bennema

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Posts posted by Floris Bennema

  1. 5 hours ago, Chris Ross said:

    Many cameras have the option to use 1/2 or 1/3 EV steps buried deep within the menus. But realistically it's probably not making a huge difference.

    Yes that's what I mean, you can adjust the camera. I made the point because I heard Alex M. telling somewhere that he found it convenient to click equivalent steps on camera and strobes. Like adjusting aperture 4 clicks down to get a better DOF and 'automaticly' the strobe 4 clicks up. Usefull if you spend a longer time on one subject.

  2. On 5/1/2025 at 12:47 PM, bvanant said:

    Well it works fine for a u4/3 at 60 mm, close enough to 90 on APS-C. Not sure that it really extends the focus range though. You will need more flotation, on a flip adapter it is quite heavy. The spine cheek was shot with the Panasonic 45 on an OM-1 with the MFO

    Bill

    Hi Bill, it works ok, but can you expand on the advantage? Did you experience a better corner sharpness and/or a snappier AF? I always liked the behaviour of my Pan 45 so I would like more info before I draw my wallet.

    Floris

  3. ·

    Edited by Floris Bennema

    11 hours ago, Byron said:

    I Just did around 30 dives in Lembeh and had the MFO for most of it, I think it's very easy good ot leave on for general macro shooting. You kind of don't notice it's on until you nee dit and it just allows you to get a tiny bit closer than normal. With regard to focusing quicker, I didn't notice that but I am pretty used to shooting macro and generally start off with the camera in pretty much the right place to make focusing instant. The image quality from it and it doesn't have any colour casts like some other macro lens such as the EMWL 

     

    MFO.jpg

    Hi Byron, did you notice a change in DOF using the MFO?  You separated the pigmy seahorse by panning, it made me wonder whether the MFO make it harder to get separation by DOF. Specialy relevant for small sensors.

  4. ·

    Edited by Floris Bennema

    Finally received the 'Barmaglot alieexpress adapter'. I was a bit affraid the combination wouldn't fit in my Olympus M 5 III but it does. The trick was to connect the cables first before sliding the camera in. It helps that the adapter is extremely flexibel. So flexibel, that I am happy that I also ordered a spare.

     

    Anyhow, the weakest point of my small camera, the battery, does not bother me any more.

     

    20250329_151628.jpg

  5. 7 hours ago, Tino Dietsche said:

    How much space do you have in the case for the connector? I can look for my documents if you like. My solution also worked in an RX100 case where there was hardly any space.

    Its not the plug but the length of the conector cable that I have bothers me. With a lot of effort it will fit. Not nice by itself, but I am  afraid that one day it will "put its foot between the door". The aliexpess one might sove this.

  6. Great messages Timo and Barmalot!

     

    The possible option at Dive and See that Chriss mentioned does not work.  I connected them and found out that their bulkhead with Micro-USB  is made to connect to a device above water. And a bulkhead like the Nauticam one, also USB-C at both sides.

     

    On Amazon I only found larger adapters. I stripped one to dimish it's size, and gave up. Especially in the Olympus M5 ii there is little room. I'll try the aliexpress adapters now.

    20250310_132048 1.jpg

  7. Sounds great, I am jealous.

     

    My Olympus M5 III has a micro USB connector so I considered to buy the bulkhead and add a USB-C to mini USB connector. But I gave up, likely it will to take to much space with the chance that the cable will get squezed when closing the back cover. Brr, an extra chace of leakage. 

     

    Nauticam, please make a mini USB bulkhead.

  8. I read this discussion for some time and started to wonder about the role treshold values of the camerasensor.

     

    @Chris Ross and @Architeuthis are is right when they argue that "Changing the shutter speed doesn't change the the ratio of red/green/blue photons, just the total number of photons that arrive."  True, but after arriving there must be enough photons to surpass the treshold value of sensor elements of the camera. As the ratio of red light is the lowest,  underexposing  may cause a too low amount of red photons to activate the 'red light sensor elements'.  Not all in 'red sensor elements'' but relatively..

     

    I am not an expert, but it sounds convincing to me 🙂

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