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Panasonic LUMIX G 25mm F/1.7 Lens, Black (H-H025E-K) $149 Delivered @ Australian Camera Sales via Amazon AU

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Great budget Micro 4/3rds lens, plastic build but fast optics and great in low light. Not the lowest price according to 3Camels but that was $129 back in 2019.

Although I don't know who wouldn't already have this lens, considering the number of giveaways it's had in the past. But it's a no brainer if you don't and want a cheap prime.

Price History at C CamelCamelCamel.

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closed Comments

  • @ Amazon AU
    a cheap prime.

    I see what you did there…

  • Expired in 7min?

  • With the crop factor of micro 4/3rds (2x) this lens is the full frame equivalent of 50mm F3.4

    • +4

      F3.4 in bokeh, but low light would still be F1.7

      • -2

        I think the bokeh is the same for m4/3 25mm 1.7 as FF 25mm 1.7, assuming the same framing?

        • No, jrgen.lulz is right. The bokeh won't be the same.

          Think about it, if it is the same bokeh regardless of the sensor size, then why get full frame? Also, why do mobile phone cameras need to use software to alter the photo to have that kind of effect?

          Check out this page, there is an interactive bit which lets you try it out / see the differences:

          https://www.dpreview.com/articles/2666934640/what-is-equival…

          • -2

            @netsurfer: No the bokeh is the same at equal focal length. Obviously this lens you get 50mm equivalent focal. But if you take a 25mm on FF and frame the SAME picture the bokeh should be the same

            • @RayEarth2133: Incorrect. if you put a 25mm on FF you can stand closer and get the same field of view. This has a significant effect on the bokeh and the separation between foreground and background.

              • -1

                @ForkSnorter: I agree there will be differences given you will be standing closer. I was trying to say that if you frame the same photo (obviously with this lens on m4/3 you have to stand further back) it is not entirely correct to say it has the same bokeh as F3.4. If you stand at the same spot maybe, but then you are not taking the same photo vs 25mm on FF.

                Try https://dofsimulator.net/en/ and tick "Lock field of view". FF 25mm F1.7 and m4/3 25mm F1.7 has similar bokeh amount. But you are right to say the background will be different given you are required to take photo from farther away with m4/3.

                For the avoidance of doubt I used Olympus m4/3 for a long time, then 2 years ago migrated to Sony FF. So I'm not making any judgements on any of the systems, they are both good (I miss the ergonomics and weather seal of EM1)

                Anyway I don't want to start WWIII on equivalence….

          • -1

            @netsurfer: The dpreview article shows the same. At equivalent focal length (ie same picture same framing) the bokeh is very similar if not the same, except for the 1" sensor lens

            • @RayEarth2133: Bokeh and DOF are not the same thing.
              Bokeh is determined by optical design, lenses, coating, iris blades/shapes.

            • +1

              @RayEarth2133: You wrote:

              I think the bokeh is the same for m4/3 25mm 1.7 as FF 25mm 1.7

              At "equivalent" focal length, that means you need m4/3 25mm f 0.85 to achieve the same bokeh as FF 25mm 1.7. So jurgen.lulz's comment of F3.4 in bokeh is correct.

              In the DP review article, from first interactive picture, at the same aperture, the dots at the back clearly look different. The second interactive picture, DP review tried to use "equivalent" aperture, so the full frame lens was set to f/3.2 whereas the four thirds lens was set to f/1.6.

              As for dofsimulator, it tells you the equivalent when you switch from full frame to micro 4/3. When you locked field of view, the model has to move 2 times the distance. The problem is, if you were to do that distance move on a full frame equivalent, then the full frame picture looks totally different.

              The reason that most of the time you are fine with MFT is because when you use a MFT camera, indirectly, due to the 2x equivalent, you are shooting with a higher equivalent f value, so if you are NOT after creaming bokeh, you generally will be happy with the result, but if you are really after creaming bokeh, then it is much harder (unless you have a top notch lens). Full frame, it is just much easier to get creaming bokeh. Light (low light) is another area where full frame is far better.

              I use two systems, with one of them being MFT. MFT has its pros and cons. However, MFT lenses had gone up in prices too much in the past few years. With the full frame cameras now getting a lot of video features, it is getting harder for MFT. Then, there are smartphones which high processing power. Things have changed a lot in the last 3 years. The fact this lens is at this price shows MFT isn't as attractive as it used to be.

      • Yes and No - as F1.7 is just the ratio of the aperture blades so technically it is f1.7 but m4/3 f1.7 lens does not let in the same amount of light in as Full Frame f1.7.

        Crop factor affects DOF as well as focal length, if you take a picture with a full frame camera at 50mm f3.4 and also m4/3 at 25mm f1.7 the photos will look identical framewise and DOF.

        Bokeh is a different story, as others have commented it is determined by the construction of the lens as well as the focal length and f-stop.

        You can get APSC and m4/3s to look the same as full frame but only up to the limit of the crop factor you cannot get a m4/3 1.7 lens to have the same DOF as a FF lens @ f1.7. Also sensors smaller than full frame are not able to gather as much light and tend to be nosier in lower light.

        https://www.youtube.com/watch?v=f5zN6NVx-hY&t=94s

  • fk me, I paid $250 on the 18th

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