Pentax K1 and 24-70mm FA lens - filters

gwoodward · 10-29-2021, 06:13 AM

If I fit a UV filter to my 24-70 FA lens to protect the front element (the lens hood falls off in my bag ALL THE TIME) will it affect image quality? I'm especially concerned about sharpness. Any ideas guys?

pschlute · 10-29-2021, 06:23 AM

Originally posted by gwoodward

If I fit a UV filter to my 24-70 FA lens to protect the front element (the lens hood falls off in my bag ALL THE TIME) will it affect image quality? I'm especially concerned about sharpness. Any ideas guys?

Unlikely to affect sharpness unless you let it get dirty and you shoot where the sun can induce flare in the image.

Just a thought though, how about using the lens cap when it is in the bag

**Bob 256** · 10-29-2021, 07:28 AM

The other thing to consider is that the front of your lens filter (if you use one) might get scratched or dirty if the lens hood won't stay on in the bag, so ditto to pschulte's suggestion. I've used a lot of UV lens filters with mostly positive results in terms of IQ (don't get an off-brand one). The biggest issue is probably reflections (when shooting into bright light) but if you get a multi-coated filter that issue is greatly reduced. There's a spectrum of thoughts when it comes to using a UV filter so be prepared to hear other opinions on using them.

**robgski** · 10-29-2021, 09:27 AM - **2 Likes**

Several PF members will disagree with me, but I use filters routinely with no issues . Buy high quality filters and you should have very few concerns with color issues.

Rather than lens caps which might not fit over the filters, Consider using the rubber lens caps from Kuvrd, they come in two sizes and stretch to fit. They also add some protection. They also make a lens hood which might suit your needs

Gerbermiester · 10-29-2021, 10:58 AM - **1 Like**

I'm usually member of the anti filter gang.

Though, I'll admit that protection filters have a place if you're planning on hiking across difficult terrain or are planning on spending some time in a sandy/dusty environment.

If a protection filter helps you feel confident getting your gear out of your bag and into your hands, I say go for it.

Just remember that not all filters are made equally. Lower quality filters may reduce the image quality of your lenses. I've noticed this to be particularly true with lenses sporting long focal lengths (like the da* 300mm). So, if you're going to buy a filter, buy a quality one. Some of my favorite brands of quality filters include Kenko, B&W, and Hoya.

Be sure to buy your filters from a reputable source. Ideally, your local camera shop. There is a scourge of counterfeit filters online (at least that was my experience a few years ago).

Good luck!

**mikesbike** · 10-29-2021, 01:05 PM

I often use such a protective filter especially if the lens front element is not recessed or is otherwise subject to damage. But I always use a high-quality multi-coated filter. I've never been able to show a reduction in image quality when using such a filter. Then when there is no threat against the lens and I am being very picky about a certain scene, I can always quickly remove the filter temporarily.

Gutta Perka · 10-30-2021, 02:05 AM

Don't Pentax deliver filters anymore. HD ones? 🤔

---------- Post added 10-30-21 at 11:08 AM ----------

Doesn't Pentax deliver filters anymore. HD ones? 🤔

pschlute · 10-30-2021, 03:11 AM

Originally posted by Gutta Perka

Don't Pentax deliver filters anymore. HD ones? 🤔

No.

Filters had a big role in film photography : Skylight to get the white balance correct, warming or cooling filters for the same reason. UV to reduce haze. Coloured filters for black and white photography. Special effect filters like starbursts.

All the above can be done easily in PP with a digital image.

Some filters still have their place with a DSLR. Polarisers to reduce reflections and intensify blue skies. ND and ND Graduated filters also are still used, although can be replicated with HDR merges in software, or selective brightening/darkening.

As pointed out above, a clear or UV filter can be used as protection especially if you are shooting in sandy/dusty or caustic environments.

But generally a filter is optional. I don't use them except ND/ND Grads.

Gutta Perka · 10-30-2021, 03:20 AM

Originally posted by pschlute

No.

Filters had a big role in film photography : Skylight to get the white balance correct, warming or cooling filters for the same reason. UV to reduce haze. Coloured filters for black and white photography. Special effect filters like starbursts.

All the above can be done easily in PP with a digital image.

Some filters still have their place with a DSLR. Polarisers to reduce reflections and intensify blue skies. ND and ND Graduated filters also are still used, although can be replicated with HDR merges in software, or selective brightening/darkening.

As pointed out above, a clear or UV filter can be used as protection especially if you are shooting in sandy/dusty or caustic environments.

But generally a filter is optional. I don't use them except ND/ND Grads.

However, a hight class protectiv splitfree glass is on my wishlist.

---------- Post added 10-30-21 at 12:21 PM ----------

Originally posted by pschlute

No.

Filters had a big role in film photography : Skylight to get the white balance correct, warming or cooling filters for the same reason. UV to reduce haze. Coloured filters for black and white photography. Special effect filters like starbursts.

All the above can be done easily in PP with a digital image.

Some filters still have their place with a DSLR. Polarisers to reduce reflections and intensify blue skies. ND and ND Graduated filters also are still used, although can be replicated with HDR merges in software, or selective brightening/darkening.

As pointed out above, a clear or UV filter can be used as protection especially if you are shooting in sandy/dusty or caustic environments.

But generally a filter is optional. I don't use them except ND/ND Grads.

However, a hight class protectiv glass is on my wishlist.

drivel · 10-30-2021, 04:35 AM

Life without lens caps is a beautiful thing. Ideally a filter hood combination to protect the filter glass. Maybe a smaller after market hood is an option. The IQ impact of the filter is negligible as long as you get a decent one.

**UncleVanya** · 10-30-2021, 05:35 AM

I suggest an alternative hood with an integrated cap would be a better solution. The filter will get dirty and possibly scratched if it isn’t protected too.

The slip over lens covers that were mentioned work well even over hoods but yours isn’t staying on which is weird. Hoods typically stay attached.

gwoodward · 10-31-2021, 07:08 AM

Hi Guys. There seems to be some confusion. The hood stays on my 24-70mm zoom without any problems - it's the lens cap that falls off. In my bag, the lens hood protects anything brushing by the lens but not dirt and dust etc. So, I don't need a replacement lens hood. Based on the replies it gives me the impetus to cover the end of the lens with a sock-like cover instead of the lens cap. Thanks for all the suggestions.

**UncleVanya** · 10-31-2021, 08:50 AM

Originally posted by gwoodward

If I fit a UV filter to my 24-70 FA lens to protect the front element (the lens hood falls off in my bag ALL THE TIME) will it affect image quality?

The reason for the confusion… lol.

The sock style caps work well.

10-29-2021, 06:13 AM	#1
gwoodward New Member Join Date: Feb 2019 Posts: 14	Pentax K1 and 24-70mm FA lens - filters If I fit a UV filter to my 24-70 FA lens to protect the front element (the lens hood falls off in my bag ALL THE TIME) will it affect image quality? I'm especially concerned about sharpness. Any ideas guys?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
K1 mkII + D FA 24-70mm F2.8 €1181,23	Franc	Pentax Price Watch	4	08-31-2020 02:42 AM
Landscape Tasmania - K1 with D FA 15-30mm f/2.8 and D FA 24-70mm f/2.8 lenses	PF752	Post Your Photos!	6	10-08-2019 11:45 PM
WR Travel Lens(es) For K1? Pentax-D FA 24-70mm Or Recommend Something Else?	GroundPepper	Pentax SLR Lens Discussion	21	08-02-2017 10:19 PM
Pentax DFA 24-70mm or Sigma 24-70mm f2.8?	David L	Pentax SLR Lens Discussion	11	03-31-2016 12:36 AM

10-29-2021, 06:23 AM	#2
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,204	Originally posted by gwoodward If I fit a UV filter to my 24-70 FA lens to protect the front element (the lens hood falls off in my bag ALL THE TIME) will it affect image quality? I'm especially concerned about sharpness. Any ideas guys? Unlikely to affect sharpness unless you let it get dirty and you shoot where the sun can induce flare in the image. Just a thought though, how about using the lens cap when it is in the bag

10-29-2021, 07:28 AM	#3
Bob 256 Site Supporter Join Date: Jun 2008 Location: Idaho Photos: Gallery Posts: 2,376	The other thing to consider is that the front of your lens filter (if you use one) might get scratched or dirty if the lens hood won't stay on in the bag, so ditto to pschulte's suggestion. I've used a lot of UV lens filters with mostly positive results in terms of IQ (don't get an off-brand one). The biggest issue is probably reflections (when shooting into bright light) but if you get a multi-coated filter that issue is greatly reduced. There's a spectrum of thoughts when it comes to using a UV filter so be prepared to hear other opinions on using them.

10-29-2021, 09:27 AM - 2 Likes	#4
robgski Loyal Site Supporter Join Date: Nov 2012 Location: Shenandoah Valley, Virginia Photos: Gallery \| Albums Posts: 8,807	Several PF members will disagree with me, but I use filters routinely with no issues . Buy high quality filters and you should have very few concerns with color issues. Rather than lens caps which might not fit over the filters, Consider using the rubber lens caps from Kuvrd, they come in two sizes and stretch to fit. They also add some protection. They also make a lens hood which might suit your needs

10-29-2021, 10:58 AM - 1 Like	#5
Gerbermiester Pentaxian Join Date: Oct 2011 Location: British Columbia Photos: Gallery \| Albums Posts: 377	I'm usually member of the anti filter gang. Though, I'll admit that protection filters have a place if you're planning on hiking across difficult terrain or are planning on spending some time in a sandy/dusty environment. If a protection filter helps you feel confident getting your gear out of your bag and into your hands, I say go for it. Just remember that not all filters are made equally. Lower quality filters may reduce the image quality of your lenses. I've noticed this to be particularly true with lenses sporting long focal lengths (like the da* 300mm). So, if you're going to buy a filter, buy a quality one. Some of my favorite brands of quality filters include Kenko, B&W, and Hoya. Be sure to buy your filters from a reputable source. Ideally, your local camera shop. There is a scourge of counterfeit filters online (at least that was my experience a few years ago). Good luck!

10-29-2021, 01:05 PM	#6
mikesbike Site Supporter Join Date: Dec 2016 Location: Southeastern Michigan Posts: 4,552	I often use such a protective filter especially if the lens front element is not recessed or is otherwise subject to damage. But I always use a high-quality multi-coated filter. I've never been able to show a reduction in image quality when using such a filter. Then when there is no threat against the lens and I am being very picky about a certain scene, I can always quickly remove the filter temporarily.

10-30-2021, 02:05 AM	#7
Gutta Perka Senior Member Join Date: Dec 2012 Posts: 126	Don't Pentax deliver filters anymore. HD ones? 🤔 ---------- Post added 10-30-21 at 11:08 AM ---------- Doesn't Pentax deliver filters anymore. HD ones? 🤔

10-30-2021, 03:11 AM	#8
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,204	Originally posted by Gutta Perka Don't Pentax deliver filters anymore. HD ones? 🤔 No. Filters had a big role in film photography : Skylight to get the white balance correct, warming or cooling filters for the same reason. UV to reduce haze. Coloured filters for black and white photography. Special effect filters like starbursts. All the above can be done easily in PP with a digital image. Some filters still have their place with a DSLR. Polarisers to reduce reflections and intensify blue skies. ND and ND Graduated filters also are still used, although can be replicated with HDR merges in software, or selective brightening/darkening. As pointed out above, a clear or UV filter can be used as protection especially if you are shooting in sandy/dusty or caustic environments. But generally a filter is optional. I don't use them except ND/ND Grads.

10-30-2021, 03:20 AM	#9
Gutta Perka Senior Member Join Date: Dec 2012 Posts: 126	Originally posted by pschlute No. Filters had a big role in film photography : Skylight to get the white balance correct, warming or cooling filters for the same reason. UV to reduce haze. Coloured filters for black and white photography. Special effect filters like starbursts. All the above can be done easily in PP with a digital image. Some filters still have their place with a DSLR. Polarisers to reduce reflections and intensify blue skies. ND and ND Graduated filters also are still used, although can be replicated with HDR merges in software, or selective brightening/darkening. As pointed out above, a clear or UV filter can be used as protection especially if you are shooting in sandy/dusty or caustic environments. But generally a filter is optional. I don't use them except ND/ND Grads. However, a hight class protectiv splitfree glass is on my wishlist. ---------- Post added 10-30-21 at 12:21 PM ---------- Originally posted by pschlute No. Filters had a big role in film photography : Skylight to get the white balance correct, warming or cooling filters for the same reason. UV to reduce haze. Coloured filters for black and white photography. Special effect filters like starbursts. All the above can be done easily in PP with a digital image. Some filters still have their place with a DSLR. Polarisers to reduce reflections and intensify blue skies. ND and ND Graduated filters also are still used, although can be replicated with HDR merges in software, or selective brightening/darkening. As pointed out above, a clear or UV filter can be used as protection especially if you are shooting in sandy/dusty or caustic environments. But generally a filter is optional. I don't use them except ND/ND Grads. However, a hight class protectiv glass is on my wishlist.

10-30-2021, 04:35 AM	#10
drivel Forum Member Join Date: Jan 2008 Location: Philadelphia, PA Posts: 65	Life without lens caps is a beautiful thing. Ideally a filter hood combination to protect the filter glass. Maybe a smaller after market hood is an option. The IQ impact of the filter is negligible as long as you get a decent one.

10-30-2021, 05:35 AM	#11
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,412	I suggest an alternative hood with an integrated cap would be a better solution. The filter will get dirty and possibly scratched if it isn’t protected too. The slip over lens covers that were mentioned work well even over hoods but yours isn’t staying on which is weird. Hoods typically stay attached.

10-31-2021, 07:08 AM	#12
gwoodward New Member Join Date: Feb 2019 Posts: 14 Original Poster	Hi Guys. There seems to be some confusion. The hood stays on my 24-70mm zoom without any problems - it's the lens cap that falls off. In my bag, the lens hood protects anything brushing by the lens but not dirt and dust etc. So, I don't need a replacement lens hood. Based on the replies it gives me the impetus to cover the end of the lens with a sock-like cover instead of the lens cap. Thanks for all the suggestions.

10-31-2021, 08:50 AM	#13
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,412	Originally posted by gwoodward If I fit a UV filter to my 24-70 FA lens to protect the front element (the lens hood falls off in my bag ALL THE TIME) will it affect image quality? The reason for the confusion… lol. The sock style caps work well.