Search results for 'uv filter' - page 163
Remove circular polorising filter
Thanks all, will try those, especially the elastic band.
Posted by walkeja on 24/08/2022 - 11:05
Remove circular polorising filter
That worked, shan't be putting it back on. Thanks again.
Posted by walkeja on 24/08/2022 - 11:56
Remove circular polorising filter
That worked, shan't be putting it back on. Use an O ring on the filter thread, it does work
Posted by Chrism8 on 24/08/2022 - 15:07
Raynox and SR
How would a close-up add-on lens change a lens's focal length? The focal length of the lens isn't changed, of course, but the camera now has two lenses in sequence and thus SR needs to take into account the focal length of the two lenses in combination. It's the same as wearing glasses or contact le...
Posted by Lubbyman on 12/04/2023 - 19:07
Raynox and SR
I'm pretty sure that the mathematical formulae for this sort of thing was covered in A-level physics, but that was a looooong while ago :( Steve I'm sure it was, fortunately I've played with it enough to remember diopters are additive. Simply change the lenses focal length into diopters add the c...
Posted by petrochemist on 15/04/2023 - 11:42
Monochrome Lens
My Super Takumar 35mm f/2.... the lens has radioactive bits and turned yellow and I haven't got around to putting it out in the sun (what sun?) to get rid of it. As a result... built in yellow filter. :lol: As others have said, there isn't really a "lens" for BW apart from those with bad aberr...
Posted by womble on 31/08/2023 - 09:52
Pentax 645 120mm 4.0 A vs FA/AF
Hi I use the 120 FA on my 645N ii and z. I enjoy the results. I use Macro lens for portrait work along with macro. When using as a portrait lens I use a 1/4 black mist filter.
Posted by denverclassic on 18/09/2023 - 16:15
Pentax 645 120mm 4.0 A vs FA/AF
Hi I use the 120 FA on my 645N ii and z. I enjoy the results. I use Macro lens for portrait work along with macro. When using as a portrait lens I use a 1/4 black mist filter. Thank you for the feedback! :)
Posted by kasperbergholt on 18/09/2023 - 17:37
Pentax DFA 21mm and screw in Lee ND filters
A word of caution if you own a Pentax DFA 21mm lens and wish to use a screw in ND filter. I purchased a Lee Elements 67mm little stopper for this purpose but discovered that the filter ring has two knurled sections which are quite chunky. They are probably a good idea for normal use but on this lens...
Posted by phb on 28/10/2023 - 13:56
Pentax DFA 21mm and screw in Lee ND filters
There are other brands that produce ND screw filters in 67mm. When researching this topic myself recently, I came to understand that Hoya Pro ND 1000 and Kenko Real Pro ND 1000 screw in filters are good alternatives to the Lee Elements Big Stopper. B + W and Heliopan also produce good 10 stop screw ...
Posted by bjolester on 28/10/2023 - 22:41
Hood compatibilty
As long the filter diameter of both lenses are the same I think the 18-270 would work on the 18-250, however it depends on how the hood fit onto the lens is a different matter.
Posted by Pwynnej on 05/08/2024 - 15:26
Filter cleaning
Greetings, I recently purchased a second hand Hoya HMC UV filter from eBay. The filter arrived with what I would describe as a slight haze and generally needed cleaning. So I used a cleaning “swab” which is used for the cleaning of spectacles. The result was a clean filter. My question is, will thi...
Posted by oasis on 22/01/2025 - 16:07
Filter cleaning
Most spectacle cleaning swabs and wipes are designed to be effective on coated lens and not impact on their effectiveness - I can't give you a guarantee but I'm pretty certain that if the filter looks clean and is not smeary then it will perform as it was meant to :smile:
Posted by LennyBloke on 22/01/2025 - 16:58
Filter cleaning
My spectacles have coatings which do the same job as coatings on filters and lenses. I use the same specialist cleaners to clean bothspectacles and camera lenses and filters. No harm appears to have been done to any of them. In fact, the lens cleaning fluid I use if something is really greasy explic...
Posted by Lubbyman on 22/01/2025 - 17:34
Filter cleaning
I would suggest a blower brush to clear any large particles/dust and then either a disposable lens cleaner (Zeiss seem to be the best of the ones I have used) or a spray cleaner and microfibre cloth, in which case spray onto the cloth and then clean the glass. I have had one or two filters with what...
Posted by smc on 22/01/2025 - 17:46
Pentax FA* 600mm lens Repair
Hi Haris, the wobbling was between the mount/aperture casing and the filter holder casing. Wish I could find a diagram of the lens.
Posted by tomkeet on 25/05/2025 - 07:30
Pentax FA* 600mm lens Repair
Hi Stephen, Understand your explained problem. My mount and aperture are secure but the mount/aperture barrel is not secure to the filter barrel.
Posted by tomkeet on 25/05/2025 - 17:16
Probably my biggest regret
Anyone compared the Pentax K 85/1.8 with the A*85? Funny you should ask - but that's what I've been doing over the last few weeks! With these 2 lenses it really comes down to what is important to you as the photographer rather than just comparing the technical capabilities of the lenses. That mig...
Posted by LennyBloke on 21/11/2025 - 10:16
Going Digital
After much deliberation, Sue and I have made another move towards digital photography. We've purchased a Nikon Coolscan IV (so where's the pentax scanner?) and I reckon that gives us around 12.3 megapixels from our slides and negatives. We keep the pentax film cameras, we keep the true wide angle of...
Posted by johnriley on 16/02/2003 - 19:41
Optio 33L
They were two of my first impressions. I don't like the plastic feel compared with other Optios either, but the funky menu control on the LCD and the range of features is excellent. I also like the ultra fast way to get exposure compensation and the fact it darkens and lightens the image so you can ...
Posted by Peter Bargh on 13/06/2003 - 00:53
